21/2 squares unsweetened chocolate|
3 tablespoons milk
1 cup powdered sugar
Yolk 1 egg
1/2 teaspoon vanilla
Melt chocolate over hot water, add one-half the sugar, and milk; add remaining sugar, and yolk of egg; then cook in double boiler until it thickens, stirring constantly at first, that mixture may be perfectly smooth. Cool slightly, flavor, and spread.