01 -
Boil macaroni according to package directions, drain and set aside.
02 -
Melt butter in a large saucepan over medium heat. Gradually add flour while stirring until the mixture becomes clumpy.
03 -
Stir in onion powder, paprika, garlic granules, Dijon mustard, and salt. Mix until the spices are well incorporated.
04 -
Gradually pour in 1 cup of milk at a time, stirring constantly to prevent lumps and achieve a smooth consistency.
05 -
Add half of the cheddar and Red Leicester cheese. Stir until completely melted and the sauce becomes smooth.
06 -
Fold the cooked macaroni into the cheese sauce, ensuring all pasta is evenly coated.
07 -
Transfer the macaroni and cheese mixture to a baking dish. Top with the remaining cheddar, Red Leicester, and mozzarella cheese.
08 -
Bake at 350°F (175°C) for 15-20 minutes. Switch to grill mode and cook for an additional 10 minutes for a crispy, golden top.