1/4 c. melted butter
1 c. granulated sugar
3 tbsp. flour
3 egg yolks, beaten slightly
3 egg whites, beaten stiffly, 10 minutes
1 1/2 c. milk
3 tbsp. lemon juice

Cream butter with sugar and flour; add egg yolks, lemon juice, and milk. Fold in egg whites. Pour mixture into an unbaked pastry lined pie plate. Bake for the first 10 minutes in a 425 degree oven, then reduce heat to 325 degrees and continue baking for 25 more minutes.