4
In small saucepan over low heat, melt 4 oz. chocolate with 3 tablespoons water and 1tablespoon margarine. Remove from heat. Add powdered sugar and 1/2 teaspoon vanilla; beat until smooth. Stir in additional water, a few drops at a time, if needed for desired glaze consistency. Immediately spoon glaze over cooled cake, allowing some to run down sides.