2 sq. butter chocolate
1/2 c. boiling water
1/2 c. granulated sugar
2 tbsp. butter
1/2 tsp. vanilla

Pour boiling water over chocolate. Stir until dissolved. Boil until thick; stir constantly. Add sugar and butter. Boil a few minutes longer to dissolve sugar. Remove from heat. Add vanilla. Stir. Pour over ice cream or unfrosted cake.