- 1/2 cup unsweetened cocoa powder
- 1 pinch salt
- 1/2 cup sugar, divided
- 3 large egg whites
- 1/8 teaspoon cream of tartar
- 1 teaspoon vanilla extract
- 1 tablespoon confectioners' sugar
- Preheat oven to 300 degrees F. Line 2 baking sheets with foil.
- In small bowl, sift together cocoa, salt, and 1/4 cup of the sugar.
- In large bowl, with electric mixer at medium-low speed, beat egg whites and cream of tartar until soft peaks form. Beat in remaining 1/4 cup sugar, 1/2 tablespoon at a time, until meringue is glossy and stiff peaks form. Fold in cocoa mixture and vanilla extract.
- Drop by rounded teaspoonfuls about 1-inch apart onto prepared baking sheets. Bake 25 minutes for soft chewy cookies or 40 minutes for crisp ones. Dust cooled cookies with confectioners' sugar.