Serve immediately (very creamy) or pour into a buttered baking dish, top with extra cheese, and bake at 350˚ for 20 to 25 minutes, or until bubbly and golden on top. Taste the sauce and add more salt and seasoned salt as needed! DO NOT UNDERSALT. Pour in the drained, cooked macaroni and stir to combine. 4 freshly baked scrolls filled with tasty mozzarella cheese, drizzled in garlic butter & dusted with parmesan and herb sprinkle. Stir until smooth. Add in the cheese and stir to melt. Add the salt, seasoned salt and pepper. Add 2 cups of cheese, 1/2 stick of butter, cover mac and cheese with milk. Pour the egg mixture into the sauce, whisking constantly. 1 box of Mac & cheese cook mac as on box.As the butter is used only to add additional flavor. Take 1/4 cup of the sauce and slowly pour it into the beaten egg, whisking constantly to avoid cooking the egg. Boxed mac and cheese can still be made without adding butter or margarine.Don’t let it burn. Pour in the milk, add the mustard, and whisk until smooth. Cook the mixture for 5 minutes, whisking constantly. In a large pot, melt the butter and sprinkle in the flour.The macaroni should be too firm to eat right out of the pot.