Add sweet potatoes to 4-quart saucepan; cover with water. Heat to boiling over high heat; cover and reduce heat. Simmer 10 to 14 minutes or until potatoes are tender. Drain; transfer to medium bowl. Mash potatoes with potato masher. Add vegetable oil spread, maple syrup, salt, cinnamon and allspice. Stir to completely blend. Spoon into baking dish.