Preheat the oven to 350°F (177°C). Lightly spray mini muffin pan with cooking spray. Or line a baking sheet with parchment paper, or silicone mat.
In a large bowl, mix together coconut flakes, dulce de leche and macadamia nuts until well combined. (TIP: The mixture may seem dry, but don't worry. Simply work the dulce de leche into the coconut flakes.)
Divide the mixture into 24 mini cups packing them down tightly. Or using a small cookie scoop, form balls and arrange them on the prepared baking sheet. (TIP: It's hard to shape the mixture into balls by hand. But if you pack a small cookie scoop well, it's super easy!)
Bake for 10-13 minutes, or until the edges are nicely browned.
Cool completely before transferring the cocadas onto a serving platter.
Notes
Note 1: If using unsweetened coconut flakes, double the amount of dulce de leche. Unsweetened coconut is drier than sweetened ones.Note 2: If you can't find dulce de leche at the store, make DIY dulce de leche! Storing Tips: - Store the cocadas in an airtight container for up to three days at room temperature or seven days in the refrigerator. - Can't seem to finish them all in less than a week? No problem! Cocadas freeze very well. Place them into a freezer-safe container and freeze for up to two months.