Brown Sugar Sauce - cooking recipe

Ingredients

4 Tbsp. butter
4 Tbsp. flour
1 1/3 c. brown sugar
1 c. boiling water
3/4 tsp. vanilla

Preparation

Melt butter; add flour and stir until smooth.
Add sugar, stirring always.
Add boiling water.
Boil 2 to 3 minutes.
Add flavoring.