Vinegar Pie
["1 stick butter", "3 eggs", "2 Tbsp. flour", "2 Tbsp. vinegar", "1 Tbsp. vanilla", "1 1/2 c. brown sugar", "pinch of salt"]
["Cream together butter, sugar and flour.", "Add eggs, then vinegar and vanilla.", "Pour in unbaked pie crust and bake at 350\u00b0 for 40 minutes or until done."]
["butter", "eggs", "flour", "vinegar", "vanilla", "brown sugar", "salt"]