- 2 tablespoons butter or margarine
- 1 (1-ounce) square unsweetened chocolate
- 1 cup sifted powdered sugar
- 2 tablespoons boiling water
How to Make It
Combine butter and chocolate in a small heavy saucepan. Cook over low heat until chocolate melts. Cool 3 to 4 minutes. Add sugar and water; beat until smooth, using a wooden spoon.