Butterscotch Pie - cooking recipe

Ingredients

3 egg yolks
1 c. can milk
1 c. regular milk
2 Tbsp. butter
1 c. brown sugar, firmly packed
1/4 c. flour plus 1 Tbsp.
1 tsp. vanilla

Preparation

Put all ingredients, except the flour and vanilla, in a saucepan and stir until boiling point.
Save some of the milk for thickening.
Add flour to the rest and boil 1 minute.
Add vanilla in before you put it in the pie shell.