Note: this recipe for chocolate crackle cookies makes far more cookies than are needed for 12 ice cream sandwiches.
Cream together butter and sugar until combined.
Add the egg and 2 egg yolks, ½ tsp salt, 1½ tsp vanilla, 1 tsp baking soda and mix until combined.
Add in 1⅔ cups almond flour and ⅓ + ¼ cup cocoa powder and mix together until smooth.
Using a cookie scoop or two spoons, spoon out 1 Tbsp of cookie dough for each cookie. Dip the dough gently in a bowl of raw sugar to coat.
Place sugar-coated side up on a parchment paper-lined baking sheet. Make sure to stagger the cookies and leave several inches between them because they will spread.
Bake for 8-10 minutes, or until soft, but edges are crisp. Allow to cool for a minute or two on the sheet before transferring to a cooling rack or the counter to finish cooling. Transfer to the fridge and allow to cool overnight for best results.