Vinegar Pie - cooking recipe

Ingredients

3 eggs
1 1/2 c. sugar
2 Tbsp. flour
1 stick butter
pinch of salt
2 Tbsp. vinegar

Preparation

Separate eggs.
Put egg whites aside.
Mix eggs (yellows), sugar, flour, butter, salt and vinegar together.
Mix egg whites with mixer, then add to the other mixture gradually.
Put in a 9-inch pie crust.
Bake until done, about 30 to 45 minutes at 350\u00b0.