Frances' Butterscotch Pie - cooking recipe

Ingredients

1 c. brown sugar
3 Tbsp. butter or margarine
4 Tbsp. cream (evaporated milk)
1 c. evaporated milk
6 level Tbsp. plain flour
1 egg yolk

Preparation

Mix in a pan the brown sugar, margarine and 4 tablespoons \"cream\".
Cook this mixture until thick and brown.