Created by Deblum on August 21, 2014
Step 1: Preheat your oven to 350F.
Step 2: Line two baking sheets with silicone baking mats. Spray mats with nonstick cooking spray. You can also line with parchment paper.
Step 3: In a large bowl, whisk together the powdered sugar with cocoa powder and salt.
Step 4: Stir in the vanilla and egg whites and whisk just until the batter is moistened (don't beat the egg whites until light and frothy, for these you just mix the whites with other ingredients).
Step 5: Stir in the chocolate chips.
Step 6: Scoop the batter by the tablespoonful onto the baking sheets. Leave enough space between each cookie for them to spread (about 2 1/2 inch of space between each cookie).
Step 7: Bake for 8-10 minutes, or until the tops are glossy and lightly cracked.
Step 8: Let the cookies cool completely on the baking sheet, and store in an airtight container for up to 3 days.