Instructions: In a mixing bowl, cream butter and sugar. Add eggs, yolks and vanilla; mix well. Add melted chocolate. Combine flour and salt; add to creamed mixture.

Stir in nuts. Spoon into six greased 10-oz. custard cups; place on a baking sheet. Bake at 350 for 10 minutes. Push one square of chocolate into center of each brownie. Bake 18-20 minutes longer or until a toothpick inserted in the brownie comes out clean. REmove from the oven and let stand for 5 minutes. Run a knife around edge of custard cups; invert on to serving plates. Dust with confectioners sugar if desired. Serve warm.

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