1 box yellow cake mix
6 oz. sour cream
1 stick butter
1/4 c. oil
4 eggs
1 c. brown sugar
1 c. chopped pecans
1 c. raisins (optional)

Mix together cake mix, sour cream, butter, oil, and eggs. Pour half into 9 x 9 inch pan. Sprinkle batter with sugar, pecans, and raisins. Put rest of batter on top. Bake at 260 degrees for 35 to 45 minutes. Remove from oven, while still hot, poke holes with 2 pronged fork. Drizzle icing over cake made of 1 cup powdered sugar and 3 to 4 tablespoons of milk.