Banana Cream Pie - cooking recipe

Ingredients

2 egg yolks
1 c. granulated sugar
4 heaping Tbsp. flour
2 c. milk
1 Tbsp. butter
1 tsp. vanilla
1 baked pastry shell

Preparation

Mix first 3 ingredients together and add milk in saucepan. Stirring constantly, bring to a boil.
Add butter and vanilla. Pour into prepared baked crust when cool.