Valentine Chocolate Cake

4 ounces bittersweet or semisweet chocolate, chopped
1/2 cup unsalted butter
2 eggs plus 2 large yolks
1/4 cup sugar
3 tablespoons all-purpose flour
Confectioners’ sugar
- Position rack in middle of oven and preheat to 450° F. Butter and flour four 4-ounce ramekins; butter and flour again.
- Melt chocolate with butter. Remove from heat. Beat eggs, yolks and sugar with an electric mixer on high speed in a deep bowl, 8 minutes, until thick and pale. Whisk chocolate mixture into egg mixture. Whisk in flour.
- Pour batter into ramekins. Place on baking sheet and bake 14 minutes, or until cakes have risen and have a thin crust, the sides are set and they are slightly jiggly in the center; underbaking is better than overbaking.
- Carefully invert each cake onto a serving plate and let sit 20 seconds. Unmold by lifting up one corner of mold; cake will fall onto plate. Dust tops with confectioners’ sugar and serve immediately.