These meringue cookies have a puffy, fragile exterior and a moist, soft interior. They deliver an enticingly bold, knock-your-socks-off bittersweet chocolate experience.

Makes about 40 (2-inch) cookies

ACTIVE TIME: 30 minutes

TOTAL TIME: 1 hour

EASE OF PREPARATION: Easy

5 ounces bittersweet chocolate (60-75% cacao), divided
2 tablespoons unsweetened cocoa powder (preferably Dutch-process), sifted after measuring if lumpy
3 tablespoons cocoa nibs (see Shopping Tip), optional
1/3 cup egg whites (about 3 large), at room temperature
1/2 teaspoon cream of tartar
1/2 cup sugar, divided (use 1 1/2 teaspoons less if cocoa nibs are omitted)
1/2 teaspoon vanilla extract

1. Position racks in upper and lower thirds of oven; preheat to 350°F. Line 2 baking sheets with parchment paper and coat the paper with cooking spray.
2. Coarsely chop 3 ounces of chocolate and place it in a small microwave-safe bowl. (Alternatively, see “No Microwave?” below.) Microwave on Medium for 1 minute. Stir, then continue microwaving on Medium, stirring every 20 seconds, until mostly melted. Stir until the remaining chocolate melts completely.
3. Chop the remaining 2 ounces chocolate into pieces the size of mini chocolate chips. Combine in a small bowl with cocoa and cocoa nibs (if using).
4. Combine egg whites and cream of tartar in a clean medium mixing bowl. Beat with an electric mixer on low for 30 seconds, then at medium speed until soft peaks start to form. Immediately add about 2 tablespoons sugar; beat for 1 minute. Slowly, about a tablespoon at a time, add the remaining sugar, then vanilla, continuing to beat on medium speed until the mixture is smooth, opaque, glossy and thickened, about 2 minutes longer. Scrape down the sides of the bowl, raise the speed to high, and beat for 30 seconds more. Lightly fold in the chocolate-cocoa mixture and the melted chocolate just until evenly incorporated and no streaks remain; do not overmix. Immediately drop the batter by rounded teaspoonfuls about 1 inch apart onto the prepared baking sheets.
5. Bake the cookies, switching the pans back to front and top to bottom halfway through, until just firm when gently pressed on top but still soft inside, 8 to 12 minutes. Transfer the pans to wire racks and let stand for 1 to 2 minutes. Then slide the paper from the pans to a flat surface and let the cookies cool completely, about 15 minutes. Gently lift the cookies from the parchment paper using a wide-bladed spatula.

NUTRITION INFORMATION: Per cookie: 28 calories; 1 g fat (1 g sat, 0 g mono); 0 mg cholesterol; 5 g carbohydrate; 0 g protein; 0 g fiber; 4 mg sodium; 10 mg potassium.

0 Carbohydrate Servings

TIP: Tip: If you add the optional cocoa nibs to the batter, the flavor-texture combination will be even more interesting and complex. Nibs, which are bits of roasted and hulled cocoa beans, are crunchy and have a pure (unsweetened) chocolate taste. Some brands of nibs are coarser than others. For these cookies, the nibs should be the size of finely chopped nuts. If necessary, simply chop them to obtain the right consistency.

MAKE AHEAD TIP: These are best enjoyed fresh, but can be stored flat with wax paper between layers in an airtight container for up to 3 days or in the freezer for up to 3 weeks. Thaw before serving.

This cookie is sooo luciously decadent! The complexity of the dark chocolate lingers when it melts and spreads all over inside your mouth. Somehow it isn't "rich" but it is totally enjoyable. (I omitted the cocoa nibs.) It IS a delicate cookie and OMG!, so worth the "puffy, fragile exterior" just to get to that "moist, soft interior." It's everything they say, believe me on this one!

MB, Wi

A bit messy to eat with its fragile exterior, but very rich and chocolatey.

Anonymous, Brookfield, CT

LOVE love LOVE these!!!

Tatiana