4 tbsp. Hershey's cocoa
2 c. granulated sugar
1 tsp. vanilla
1 c. milk
2 tbsp. butter

Mix cocoa and sugar. Add milk and butter; bring to boiling. Continue boiling until a soft ball is formed when a small amount from a spoon is dropped into cold water. Remove from heat and add vanilla. Allow to stand until fairly cool. Beat until creamy and pour into buttered pan.