Butterscotch Pie - cooking recipe

Ingredients

1 1/2 c. brown sugar
1/2 c. granulated sugar
4 Tbsp. flour
2 c. milk
1/2 stick margarine
1 tsp. vanilla flavoring
2 eggs, beaten
1 (9-inch) baked pie shell

Preparation

Combine brown sugar, sugar and flour in heavy saucepan.
Stir in milk and eggs.
Cook on medium-high heat until comes to boil, stirring constantly.
Cook for 5 minutes.
Stir in margarine and flavoring.
Remove from heat.
Allow to cool for 5 minutes.
Pour in pie shell.
Cool and serve with Cool Whip.