Chess Pie Instructions: 1/4 pound of butter 1/2 cup of brown sugar 1 cup of white sugar 3 eggs 1 tablespoon of vinegar 1/2 tablespoon of vanilla 1 tablespoon of cornmealMelt the butter, br own and white sugars. Add the eggs, vinegar, vanilla, and the cornmeal and stir until mixed but do not beat. Pour into an unba ked piecrust and bake for 1 hour at 350 degrees.