Using electric mixer, beat eggs, yolks and sugar in bowl until pale and thick, about 10 minutes. Reduce speed; gradually beat in flour. Add chocolate and continue to beat until thick and glossy, about 5 minutes.
4 Divide among prepared cups. Bake until cake is set around the edges but center moves slightly when cup is moved--about 12 minutes. Cool slightly.
5 Run sharp knife around edge of cups. Turn out onto plate. Serve warm with ice cream.
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