Flourless Deep Dark Chocolate Cookies

Ingredients

• Nonstick vegetable oil spray
• 1 1/2 cups bittersweet chocolate chips (about 9 ounces)
• 3 large egg whites, room temperature
• 2 cups powdered sugar, divided (plus 1/2 cup for cookie coating)
• 1/2 cup unsweetened cocoa powder
• 1 tablespoon cornstarch
• 1/4 teaspoon salt

Directions

1. Melt 1 cup chocolate chips in glass bowl in microwave, stirring frequently, about 2 minutes. Set aside and let cool slightly.
2. Using electric mixer, beat whites in large bowl to soft peaks. Gradually beat in 1 cup sugar. Continue beating until mixture resembles soft marshmallow cream.
3. Whisk 1 cup sugar, cocoa, cornstarch, and salt in medium bowl to blend. Then, on a low speed, add the dry ingredients into the marshmallow cream mixture.
4. Next, add remaining 1/2 cup chocolate chips to lukewarm chocolate mixture. Add chocolate mixture to cream mixture and blend well (dough will become very stiff).
5. Place remaining 1/2 cup powdered sugar in bowl. Roll 1 rounded tablespoon dough into ball; roll in sugar, coating thickly. Place on prepared sheet. Repeat with remaining dough, spacing 2 inches apart.
6. Bake until puffed and tops crack, about 10 minutes. Cool on sheets on rack 10 minutes. Transfer to rack, cool.