1 tablespoon flour or cocoa powder (the cocoa powder is lower calorie)
½ teaspoon baking powder
Steps:
Preheat the oven to 350˚F or 175˚C.
Beat the egg whites, sugar, and vanilla until they form stiff peaks (do not fall off the whisk)
Fold the flour/ cocoa and baking powder into the eggs.
Spoon the batter onto a baking sheet sprayed with cooking spray or lined with a nonstick mat. Each cake should be between a golf ball and a tennis ball in diameter.
Bake the cookies for 5-10 minutes, or until they are golden brown and no longer taste like raw egg.
Let the cakes cool on the baking sheet for 5 minutes before transferring to a cooling rack. Once they are cooled, enjoy!