- 1/2 cup butter
 - 2 tablespoons confectioners' sugar
 - 1 1/4 cups all-purpose flour
 - 1 1/2 cups packed brown sugar
 - 1/4 cup butter, melted
 - 2 eggs, beaten
 - 1 tablespoon distilled white vinegar
 - 1 teaspoon vanilla extract
 - 1 cup raisins
 
- Preheat oven to 350 degrees F (175 degrees C).
 - To Make Base: In a small mixer bowl, cream together 1/2 cup butter or margarine and confectioners' sugar. Blend in flour. Pat into 9X9 inch square pan. Bake in preheated oven for 5 minutes.
 - To Make Filling: In a large bowl combine brown sugar, melted butter or margarine, beaten eggs, vinegar, vanilla, and raisins. Pour over base and bake in preheated oven for 35 to 40 minutes, until set.