Adapted from kumquatblog.com
cups (350 grams) powdered sugar
cup cocoa powder (i like the dark version)
cups semi-sweet chocolate chips
large egg whites
1. Preheat oven to 350`. 2. Combine powdered sugar, cocoa powder, salt, and chocolate chips in a medium bowl. Add egg whites and vanilla; stir until well-combined. (batter should be about the consistency of school glue... not too runny. if it's runny, add more powdered sugar to achieve correct consistency.) 3. Spoon batter onto parchment-lined baking sheets in 2 tablespoon mounds or a 1 1/2-inch cookie scoop. Bake at 350` for 14 minutes or until tops are cracked and glossy, and edges look done. Cool slightly; remove to cooling rack to cool completely. Peel carefully off of parchment. Yield: almost 2 dozen.