Corn Meal Pie
["3 egg yolks (yellow)", "1 c. sugar", "2 Tbsp. corn meal", "1 stick butter", "1 Tbsp. vinegar", "1 Tbsp. vanilla"]
["Pour in pie crust. Bake until firm (about 1 hour) at 300\u00b0. Beat egg whites. Put on top."]
["egg yolks", "sugar", "corn meal", "butter", "vinegar", "vanilla"]