Chocolate Souffles

These soufflés may be made several hours in advance and kept in a refrigerator until just before baking. If refrigerated, bake an additional 2 to 3 minutes. Alternatively, the soufflés may rest at room temperature for up to 1/2 hour before baking with no effect on cooking time.

1 tablespoon unsalted butter, softened

10 1/2 ounces (10 squares) extra-bittersweet chocolate

1 1/3 cups whole milk

1 tablespoon cornstarch

3 large egg yolks, room temperature, lightly beaten

6 large egg whites, room temperature

1/3 cup sugar; more for soufflé ramekins

1. Heat oven to 400 degrees. Butter and sugar six 6-ounce soufflé ramekins. Place on a rimmed baking sheet; set aside.

2. In a double boiler over medium heat, melt the chocolate until smooth. Remove from the heat and keep warm.

3. In a medium heavy-bottom saucepan combine milk and cornstarch. Stir well with a wooden spoon to combine. Bring the mixture to a boil over medium heat, stirring continuously, until thick.

4. Remove milk mixture from the heat and stir in warm melted chocolate. Let cool slightly. Add lightly beaten egg yolks and stir until well combined.

5. In the bowl of a heavy-duty mixer, whip egg whites on medium speed until foamy. Slowly add sugar and increase speed to high. Whip until shiny and stiff peaks form, about 3 minutes.

6. Using a whisk, lighten the chocolate mixture with about 1/3 of the beaten egg whites. Stir until well-combined. Using a large rubber spatula, fold in remaining egg whites until just incorporated.

7. Spoon mixture into prepared soufflé ramekins; the mixture should come up to the top of the ramekin. Transfer filled soufflé ramekins on rimmed baking sheet to oven. Bake until risen, 12 to 15 minutes. Serve immediately.