1 c. sugar
1 T. butter
2 T. flour
juice of 1/2 lemon
3 egg yolks
1 c. milk
3 egg whites, beaten until stiff

Mix sugar, butter and flour. Add lemon juice, egg yolks and milk. Beat well. Fold in beaten egg whites. Pour into unbaked pie shell. bake at 375 until outside half is set.
Center may seem a bit soft.