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Home » RECIPE » Desserts » Microwave Peanut Brittle Recipe

Microwave Peanut Brittle Recipe

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By: Shinee Published: 4/21/2016Updated: 6/08/2021

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No candy thermometer is required for this no hassle microwave peanut brittle candy recipe. And it takes only 10 minutes of hands-on time. It can’t get easier than this!

{scroll down for video tutorial}

No candy thermometer is required for this no hassle microwave peanut brittle candy recipe. And it takes only 10 minutes of hands-on time. It can't get easier than this!

My mother-in-law’s friend, Leo, makes the most addicting peanut brittles that I’ve ever had! It’s sweet and nutty, melt-in-your-mouth crunchy. I don’t know if that last part make any sense at all, but it basically means it’s not rock hard, or stick-to-your-teeth chewy that you’d pray not to lose a teeth while eating it.

No, nothing like that. Instead this peanut brittle has light and airy texture with the most satisfying crunch.

Every Christmas my MIL shares her bag of treats from Leo with me, because she knows how much I love them. Well, this past January she brought yet another bag full of amazing brittles for me and my mom.

My mom loved those brittles so much so she insisted me to call Leo for the recipe, and I obliged. Don’t know why it took me so long, but I’m so glad I did.

And today I’m going to show you how to make the easiest and most addicting candy ever. Ready?

No candy thermometer is required for this no hassle microwave peanut brittle candy recipe. And it takes only 10 minutes of hands-on time. It can't get easier than this!

As I said earlier,  these are the easiest peanut brittles in the world! No exaggeration here, because 1. You don’t need candy thermometer. 2. No stirring sugar mixture over hot stovetop for a long time. 3. It only takes 10 minutes of hands on time, one bowl with a lid, a microwave, and handful of simple ingredients.

Here’re my tips and tricks for success:
  • Prepare and measure out all the ingredients before starting. The process goes super quick and you want that margarin, that baking soda right now!
  • Speaking of margarin. Yes, you do need margarin. And no, you can’t use butter, I tried it to no avail. (<- I got rock hard brittles!) I gave in and bought a package of margarin just for this recipe, but it’s so worth it.
  • Microwave-safe bowl with a lid is essential. Leo stressed that the bowl has to have a lid, or you’ll risk burning the mixture.
  • Baking soda is what makes the candy so airy and light. After mixing in soda, the mixture will foam up. Don’t be alarmed, because it’s a good thing. Don’t take too much time mixing though, just a few good stirs until the mixture is evenly foamed up and pour it on a buttered baking sheet. I use 2 forks to spread it out evenly, but not too thin.
  • Directions on timing in this recipe are for 1000Watt microwave.

I now know the recipe by heart, as I’ve made countless batches to feed my mom’s craving. I even sent some to my sisters back in Mongolia, and they all loved it. Well, I mean, what’s not to love here??

No candy thermometer is required for this no hassle microwave peanut brittle candy recipe. And it takes only 10 minutes of hands-on time. It can't get easier than this!

Hope you give this fool-proof recipe a try.

The Easiest Peanut Brittle

No candy thermometer is required for this no hassle microwave peanut brittle candy recipe. It takes only 10 minutes of hands-on time. It can’t get easier than this!
4.50 from 14 votes
serves: 1 pound
Prep: 20 minutes
Cook: 10 minutes
Total : 1 hour
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Ingredients

  • 1 cup dry-roasted peanuts
  • 1 cup 200gr sugar
  • 1/8 teaspoon salt
  • ½ cup light corn syrup
  • 1 tablespoon margarin*
  • 1 teaspoon pure vanilla extract
  • 1 teaspoon baking soda
Note: I test all my recipes with both measurements for the most precise and accurate result!

Instructions

  • First check your microwave power. (Mine was written at front when you open the door.) The time directions in this recipe for microwaves with 1000Watts.
  • Measure and prepare all the ingredients before moving forward.
  • Prepare a baking sheet and spray with non-stick spray.
  • In 1-quart microwave-safe bowl with a lid (stay away from plastic container though, I prefer a glass bowl), combine peanuts, sugar, salt and corn syrup.
  • Cover the bowl and microwave the mixture for 3 minutes. (Leo’s tip: If you don’t cover the mixture, it’ll get burnt.)
  • Take it out and give it a nice stir.
  • Then cover and microwave for another 3.5 minutes.
  • Take it out and stir in margarine and vanilla extract.
  • Cover and microwave again for 2.5 minutes.
  • Take it out and add baking soda.
  • Quickly stir, as the mixture foams.
  • Pour the mixture onto the prepared baking sheet.
  • Using 2 forks, spread it out into even layer.
  • Let it cool and harden, about 30-45 minutes. Store in a ziplock bag for up to a week.

Tips & Notes:

For video directions and additional notes, read the post above.
*You can’t substitute butter for margarin. I tried and got rock hard brittles.
 

Nutrition Facts:

Calories: 2246kcal (112%) Carbohydrates: 364g (121%) Protein: 36g (72%) Fat: 86g (132%) Saturated Fat: 13g (81%) Polyunsaturated Fat: 26g Monounsaturated Fat: 42g Sodium: 2644mg (115%) Potassium: 1005mg (29%) Fiber: 12g (50%) Sugar: 337g (374%) Vitamin A: 501IU (10%) Vitamin C: 1mg (1%) Calcium: 110mg (11%) Iron: 3mg (17%)
* Disclaimer: All nutrition information are estimates only. Read full disclosure here.
Author: Shinee
Course:Snack
Cuisine:American
Did you make this?Show me your creation! Tag me @shineshka and hashtag it #sweetandsavorybyshinee!
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  1. Donna Mcdaniel says

    Posted on 8 December 2018 at 2:23 pm

    2 stars
    I used a 1 quart glass bowl with lid in a 925 watt microwave and it boiled over before the time was was up. I would recommend a bigger size bowl as this size made a huge mess.

    Reply
    • Shinee says

      Posted on 9 December 2018 at 1:45 pm

      Hi, Donna. Sorry you had a mess. So weird that you got a spill. I use 1Qt bowl without any problem. But thanks you for sharing your experience.

      Reply
  2. Julie Stokes says

    Posted on 9 September 2018 at 11:14 pm

    5 stars
    I was leary about making this because I have a small 700 watt microwave. With an upcoming move and only a 1/2 cup of Karo and 1 cup of peanuts I thought i’d give it a try. I did increase the time by 1 minute for the first two rounds. I waited to add the peanuts for the third cooking time and because I didn’t have margarine I used coconut oil adding an extra .5 minutes for the last. I used a non stick silicone mat and when the brittle was cool enough to touch but still soft, I stretched it thinner. Turned out super yummy and makes just the right amount to work easy with.

    Reply
    • Shinee says

      Posted on 13 September 2018 at 9:22 am

      Hi, Julie. Thank you for sharing your experience!! So happy you it turned out for you!

      Reply
  3. Laura says

    Posted on 15 February 2018 at 7:47 pm

    5 stars
    My microwave is 1250 watts so I take off a half of minute per “each”microwave time. I also add peanuts after the first round of microwaving to alleviate the peanuts from getting too toasty. Very addicting and easy recipe! Thanks!

    Reply
    • Shinee says

      Posted on 16 February 2018 at 9:31 pm

      So happy you found perfect adjustments for your microwave. Thanks for sharing, Laura!

      Reply
  4. Dr. Jack says

    Posted on 2 February 2018 at 11:37 am

    Followed the recipe exactly and it burned in my 1000 watt microwave. Bowl was impossible to clean. 

    Reply
    • Shinee says

      Posted on 5 February 2018 at 12:24 pm

      Hi, Dr. Jack. Thank you for your feedback. Question… Did you use a lid for your bowl? Because the person who shared this recipe with me emphasized on importance of using a lid, or the mixture will burn. Also, if you soak the bowl in hot water for about an hour, it basically cleans itself.

      Reply
  5. Ben says

    Posted on 28 January 2018 at 4:05 pm

    5 stars
    Just made it for a Sunday afternoon sweet treat. Kudos to the person who came up with the recipe. Outstanding brittle. I used mixed nuts in place of peanuts. Will make it again and again…..

    Reply
    • Shinee says

      Posted on 1 February 2018 at 10:20 pm

      Ben, thank you for your feedback. So glad you enjoyed the brittles! I’m so grateful that family friend Leo shared this fabulous recipe with us all!

      Reply
  6. Sarah franklin says

    Posted on 23 December 2017 at 6:08 pm

    5 stars
    I just want to thank you for the wonderful recipe !! I just made 4 batches and they all turned out great !! Merry Christmas 💛💛💛

    Reply
    • Shinee says

      Posted on 24 December 2017 at 11:19 am

      Yay, so happy you loved the recipe. Thank you for your feedback, Sarah! Merry Christmas!

      Reply
    • Donna Gibbs says

      Posted on 4 January 2018 at 4:05 pm

      This recipe does not have water—made it today and was delicious.  Made it with butter and no lid on bowl —still turned out good.  Just seemed thick at first when mixing sugar and syrup.  I have been looking at other recipes—some have water and some don’t—just wondered what difference water would make.

      Reply
      • Shinee says

        Posted on 20 January 2018 at 3:05 pm

        Hi, Donna. Glad you tried and loved the brittles. I have no idea why some recipes call for water. This recipe was given to me by family friend.

        Reply
  7. Ann says

    Posted on 12 December 2017 at 5:22 pm

    5 stars
    This was so easy! Thank you! I followed the instructions, and as others above did, crushed the peanuts before adding to the mixture. Delicious.

    Reply
    • Shinee says

      Posted on 13 December 2017 at 10:24 am

      Hi, Ann. So you used crushed peanuts instead of whole? I’m so glad you enjoyed the recipe. 🙂

      Reply
  8. Chris says

    Posted on 8 December 2017 at 5:52 am

    First batch slightly burnt. Second batch I reduced time by 30 sec. PERFECTO! Soooo good!. I can eat a whole batch in one sitting. 

    Reply
    • Shinee says

      Posted on 8 December 2017 at 9:51 am

      Hi, Chris! I know what you mean, they’re so addicting! Does your microwave have a high power than 1000Watt? That may be why you needed to decrease the time.

      Reply
  9. Clara says

    Posted on 21 November 2017 at 2:52 pm

    What would you suggest time wise for a 1200 watt micro ?
    Thx
    Clara

    Reply
    • Shinee says

      Posted on 21 November 2017 at 8:21 pm

      Clara, it’s really hard to tell the exact time, as I haven’t tested it at 1200Watt microwave. But because yours has more power, I’d suggest to decrease the times by maybe 30 seconds. I’m just taking a wild guess here. If you feel it’s burning the mixture decrease the time even more. Hope this make sense.

      Reply
      • Jamie | Medium Sized Family says

        Posted on 23 December 2017 at 4:37 pm

        I have a 1200 watt microwave, and here’s what I did. FYI, I’ve never made peanut brittle before, but my family swears this recipe won’t last the rest of the night. It’s delicious!!

        Step 5, microwave it for 2 minutes 30 seconds.
        Step 7, microwave 3 minutes.
        This time I thought it smelled just a touch like it might be burning, so for the last step…
        Step 9, microwave 1 minute 30 seconds.

        It turned out amazing!! Thanks for this recipe!

        Reply
        • Shinee says

          Posted on 24 December 2017 at 11:18 am

          Thank you so much, Jamie, for sharing your adjustments. It’s very helpful!

  10. Lori says

    Posted on 18 November 2017 at 4:27 pm

    5 stars
    I followed the recipe exactly as is shown and my peanut brittle came out perfect it’s delicious great and easy recipe.

    Reply
    • Shinee says

      Posted on 18 November 2017 at 5:29 pm

      Yay, so happy you love these, Lori! Thank you for your feedback!

      Reply
  11. Anna Baty says

    Posted on 5 November 2017 at 1:07 pm

    5 stars
    I tried to make this recipe and it came out to soft.
    What Can I do to make it turn out a little hard but not to hard. 
    Thank you, Anna Baty

    Reply
    • Shinee says

      Posted on 5 November 2017 at 8:45 pm

      Hi, Anna. Have you checked the power of your microwave. I’m guessing it’s less than 1000Watt? If it is, then you many need to increase the cooking time. My instructions are for 1000Watt microwaves.

      Reply
  12. Teresa Kennedy says

    Posted on 6 September 2017 at 6:37 pm

    Dry roasted peanuts – salted or no salt?
    What about Spanish peanuts?

    Reply
    • Shinee says

      Posted on 7 September 2017 at 10:55 am

      Hi, Teresa! The person I got the recipe from actually called for Spanish peanuts, but I couldn’t find it in our grocery store, so I use dry roasted salted peanuts. And I love it. So you can definitely try Spanish peanuts.

      Reply
  13. Kristin says

    Posted on 8 January 2017 at 12:34 pm

    I have a 950 watt, it burned using these directions. Any suggestions???

    Reply
    • Shinee says

      Posted on 8 January 2017 at 2:17 pm

      Did you cover the bowl? Uncle Leo, who I got this recipe from, had warned that if you don’t cover, it burns. I always cover mine, and never had mine burnt. I made so many batches this year.

      Reply
  14. Joyce says

    Posted on 30 December 2016 at 6:52 am

    when making this try adding nuts the last minutes or at the end this works  add crushed nuts this way they won’t burn like so many said there’s burnt

    Reply
  15. Joyce says

    Posted on 30 December 2016 at 6:47 am

    I made this it so EZ and great taste the only thing I did was crush the peanuts it spread out easier a was like air great

    Reply
    • Shinee says

      Posted on 30 December 2016 at 9:45 pm

      Oh, I’ll have to try crushing the nuts. I can imagine how it’s much easier to spread that way. Thanks for the suggestion, I’ll definitely try that next time I make this.

      Reply
  16. Paro says

    Posted on 29 December 2016 at 6:59 pm

    Done this twice and each time my peanuts come out burn at the end, and when my Granddaughter did it it was great, can’t figure what I’m doing wrong, pls help. Lol

    Reply
    • Shinee says

      Posted on 30 December 2016 at 9:43 pm

      Hi, Paro. What’s the power of your microwave? The time directions are for microwaves with 1000watt power. If your microwave is more powerful, it’ll burn the mixture. You’ll have to adjust the power when you’re microwaving, or adjust the time, but I won’t be able to offer any specifics as to how much. Hope this helps.

      Reply
  17. Kristen W says

    Posted on 18 December 2016 at 7:12 pm

    Have you made multiple batches at once?  Like 5 pounds?

    Reply
    • Shinee says

      Posted on 18 December 2016 at 8:34 pm

      So, yes! AND it failed miserably! 🙂 I doubled the batch (I needed like 4 batches) and increased the cooking time, but it still didn’t set right. It turned out kind of soft and chewy, and not in a pleasant way. I’d stick with the recipe as is. But I know how tempting it is to make one big batch. 😉

      Reply
  18. Deb says

    Posted on 18 December 2016 at 4:33 pm

    I have a 700 watt mw. Has anyone tried this recipe using such and how did it turn out? Thank you much!

    Reply
    • Shinee says

      Posted on 18 December 2016 at 8:26 pm

      Deb, you’ll need to increase the time for each round, since your microwave has lower power. If I have to guess, maybe add a minute to each round. Otherwise, the mixture won’t reach high enough temp to set properly.

      Reply
  19. AnnMarie says

    Posted on 1 May 2016 at 7:01 pm

    This sounds so good. I love peanut brittle but have failed to make it right. It is too expensive to buy already made so I have to try this one. So happy to have found you and this recipe!

    Reply
    • Shinee says

      Posted on 1 May 2016 at 10:52 pm

      AnnMarie, definitely give this a try. It’s so easy that literally takes 10 minutes. 🙂

      Reply
  20. Janet says

    Posted on 24 April 2016 at 6:07 am

    I made this peanut brittle and it’s AMAZING!! I didn’t think it would work because it just seemed too easy but it did and it was delicious and hubby and I devoured it. Now I want to make another batch but I’m thinking I should wait…..or NOT. Thank you for sharing and I love the fact that there’s no candy thermometer. Follow the recipe exactly and the magic will happen!!

    Reply
    • Shinee says

      Posted on 24 April 2016 at 4:37 pm

      Janet, so happy you tried! Isn’t it amazing how easy it is? I’ve made many peanut brittles complicated way, but they turned out quite as well as this one. Thanks so much for your feedback! 🙂

      Reply
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