Combine flour, salt, dry mustard, ... will curdle!. Stir in butter and 2 cups Cheddar cheese, stirring until cheese melts. ... lb.) box of macaroni until done al dente (firm) ... in colander. Turn Crockpot to High setting. Butter the ... Sprinkle top with paprika.
Ingredients: 8 (flour .. macaroni .. milk .. mustard .. salt .. sauce ...)