2 c. sugar
1 c. buttermilk
1 tsp. baking soda
1/2 stick butter
1 tbsp. vanilla

Combine sugar and buttermilk in an iron fryer and cook until soft ball forms when dropped in cold water. Add soda and stir until it gets brown. Add butter and vanilla. Beat until butter has melted. Quickly spread on cake.

It will harden quickly.