1/3 cup sugar
1/4 cup cocoa
2 tbsp. water
1/4 cup margarine
1/4 tsp. vanilla

In a small heavy saucepan, stir together sugar, cocoa, and water until smooth.  Add margarine; cook and stir over medium-low heat until bubbly.  Reduce heat to low; cook, stirring constantly, for 3 minutes.  Remove from heat; stir in vanilla.  Pour into a small bowl.  Cool for 1 hour.  Cover and refrigerate until serving time.  Serve on sweet breads.