This is an old Canadian recipe from the prairies. It's easy and excellent. Please make sure to butter the pan well. preheat oven to 350

Butter Tart Slices

1/2 cup butter
1 cup flour
2 tbsp. icing sugar
Mix and press in 8x8 inch pan

Topping

1 cup brown sugar
1 tsp. vanilla
1/4 cup melted butter
1 cup raisins
1 tbsp. vinegar
2 eggs
Mix together and pour over base. Bake at 350 for 30 to 35 mins.