2 1/2 c. powdered sugar
3/4 c. unsweetened cocoa powder
1/4 tsp. Kosher salt
4 egg whites
1/2 tsp. vanilla extract
1 1/2 c. semisweet chocolate chips
Preheat oven to 350° and line two baking sheets with parchment paper. In a large bowl, combine powdered sugar, cocoa powder, and salt.
Stir in egg whites and vanilla then add chocolate chips. Scoop tablespoon sized cookies onto prepared baking sheets and bake until set, 10-12 minutes.