Flourless Chocolate Cake

• bittersweet chocolate, chopped↗8 ounces
• unsalted butter↗1⁄2 lb
• sugar↗1 1⁄2 cups
• large eggs↗6
• unsweetened cocoa powder, plus additional for dusting↗1 cup

Step-by-step instructions

1. 1

   Preheat oven to 350 degrees F.

2. 2

   Butter a 10-inch springform pan, line bottom with a round of parchment or wax paper, and butter paper.

3. 3

   melt chocolate with butter in a medium metal bowl set over a saucepan of barely simmering water, stirring until smooth.

4. 4

   Remove bowl from heat and whisk in sugar.

5. 5

   Add eggs one at a time, whisking well after each addition.

6. 6

   Sift cocoa powder over chocolate and whisk until just combined.

7. 7

   Pour batter into pan.

8. 8

   Bake until top has formed a thin crust and a wooden pick inserted in center of cake comes out with moist crumbs adhering, 35-40 minutes.

9. 9

   cool cake in pan on a rack for 10 minutes, then remove side of pan.

10. 10

    invert cake onto a plate and reinvert onto rack to cool completely.

11. 11

    dust cake with cocoa powder before serving.