1/2 stick butter
1/4 c. vinegar
6 tbsp. flour
1 c. sugar
1 c. water
1 tsp. vanilla or lemon extract

Mix flour and sugar; add to boiling liquids. Cook until thick. Cool.

CRUST:

2 c. flour
1/2 c. canned milk
1/4 c. shortening
1 egg
1 tsp. baking powder
1/2 tsp. salt
3 tbsp. sugar