Cook macaroni according to directions on box don't overcook. Drain in colander. Put in pot cooked in or another bowl large enough to mix in other ingredients.
Add 2Tbsp butter or margarine,1Tbsp.brown sugar, evaporated milk, 1and1/2cups cheddar cheese. reserve 1/2c cheese for topping. When all ingredients have been mixed. Place in a greased or sprayed 2.5qt baking dish.