Lemon Sponge Pie - cooking recipe

Ingredients

3 eggs, separated
pinch of salt
small amount of butter
juice and rind of 1 lemon
3/4 c. sugar
2 Tbsp. flour
1 1/2 c. milk

Preparation

Mix all ingredients, but egg whites.
Beat egg whites until stiff and fold into other mixture.
Bake at 450\u00b0 for 10 minutes, then reduce heat to 350\u00b0.
Cook until knife comes out clean.