Warm Chocolate Cake

8 tablespoons (1 stick) unsalted butter, plus more for molds 2 teaspoons all-purpose flour, plus more for dusting molds

4 ounces bittersweet chocolate, preferably Valrhona

2 large whole eggs

2 large egg yolks

¼   cup sugar

Butter and lightly flour four 4-ounce molds, ramekins, or custard cups. Tap out excess and set aside.

In the top of a double boiler or heat-proof bowl set over a pan of simmering water, combine butter and chocolate; heat until chocolate has almost completely melted.

3.  In the bowl of an electric mixer fitted with the paddle attachment, beat together eggs, yolks, and sugar until light and thick. You can also use a whisk and do by hand

4.  Add melted chocolate mixture, and beat to combine. Quickly beat in flour until just combined. Divide batter evenly among the molds.

5.  Preheat oven to 450°. Place filled molds on a rimmed baking sheet, and bake until the sides have set but the centers remain soft, 6 to 7 minutes.

6.  Invert each mold onto a plate, and let rest 10 seconds. Serve immediately.

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