Cranberry dessert

1 cup sugar
1/4 cup butter
1 egg
1/2 cup milk
1 1/2 cups flour
1/2 teaspoon baking powder
1/2 teaspoon salt
1 teaspoon vanilla
1 1/2 cups chopped cranberries

Sauce:
1 cup sugar
1 cup cream
1/2 cup butter
1 teaspoon vanilla

Cream together sugar and butter. Add egg, baking powder, salt and vanilla. Add milk and flour alternately until all mixed together. Stir in chopped cranberries. Cook in an 8- by 8-inch baking dish. Bake at 350 degrees for 25 minutes. Combine sauce ingredients together; cook for 5-10 minutes. Pour over base.