6 tablespoons (3/4 stick) unsalted butter
8 ounces bittersweet chocolate, coarsely chopped (or 1 1/2 cups semisweet chocolate chips)
6 large eggs, separated, at room temperature
1/2 cup sugar
Ice Cream, for serving (optional)
Preheat oven to 275 degrees F. Line standard muffin tins with paper liners. Melt butter and chocolate in a large heatproof bowl set over (not in) a pan of simmering water. Stir to combine, then remove bowl from heat and let cool slightly. Whisk in egg yolks.
With an electric mixer on medium speed, whisk egg whites until soft peaks form. Gradually add sugar, beating until peaks are stiff and glossy but not dry (do not overbeat). Whisk one quarter of the beaten egg whites into chocolate mixture to lighten; gently fold mixture into remaining whites.
batter evenly among lined cups, filling each three-quarters full. Bake,
rotating tins halfway through, until cupcakes are just set in centers,
about 25 minutes. Transfer tins to wire racks to cool completely before
removing cupcakes.( their centers will sink). Cupcakes are best eaten
the same day they are baked; keep at room temperature until ready to
serve, topped with scoops of ice cream, if desired.
From the kitchen of: Susi's Kochen und Backen Adventures (http://susikochenundbacken.blogspot.com/)
Adapted from: Martha Stewart's Cupcakes