Sweet Potato Casserole April 26, 2001 at 4:27 PM CDT - Updated July 1 at 8:45 AM 3 C Sweet potatoes, cooked and drained, or 1 large can1 t. Vanilla1 Egg1/4 C Margarine3/4 C Sugar Topping 1/2 C Flour1/2 C Pecans1 C Brown Sugar1/3 C Margarine Heat potatoes, mix all ingredients, except topping ingredients, with a mixer. Pour into an 11 x 13" casserole dish that has been sprayed with a non-stick spray. Mix topping ingredients till crumbly. Pour over casserole. Bake at 300 degrees for 20 - 25 minutes or till bubbly.