Lemon Sponge Pie - cooking recipe

Ingredients

1 c. sugar
3 Tbsp. butter, melted
yolks of 2 eggs (save whites)
1 lemon
3 Tbsp. flour
1 c. milk

Preparation

Mix together the sugar, butter and 2 egg yolks, beating well. Add to this mixture the juice and rind of 1 lemon.
Then add the flour, milk and the 2 egg whites, stiffly beaten.
Pour in a cooked pie crust and bake 45 minutes in slow oven at 300\u00b0.