Make this recipe a recipe that people in that category can eat. categories: ['low_fat'], recipe: mix dry ingredients in a saucepan. whisk in milk. cook over medium heat, whisking constantly, until it thickens and bubbles. cook and stir 30 seconds more, then remove from the heat. whip in the margarine and mustard. add more milk or water if mixture is too thick. add hot, cooked macaroni, and mix well. enjoy!

Target recipe: preheat oven 350°f. melt butter in a large saucepan. add flour and dry mustard. (roux will be very thick) gradually add milk, stirring with a whisk while you slowly pour. whisk until sauce is smooth. bring sauce to a boil, reduce heat to medium low. cook sauce for 10-15 minutes or until sauce begins to thicken slightly. remove from heat. add cheeses, stirring well until well blended. stir in cooked macaroni. spoon mixture onto a baking sheet coated with cooking spray. sprinkle crushed cereal on top. bake for 30 minutes or until bubbly.