Image of Old School Mac n' Cheese

Old School Mac n' Cheese

Prep Time: 30 min
Cook Time: 45 min

Ingredients

  • 1 ¾ pounds whole-wheat macaroni
  • ¾ cup butter
  • ¾ cup all-purpose flour
  • 6 cups milk, divided
  • 1 tablespoon Worcestershire sauce
  • 1 teaspoon mustard powder
  • 1 teaspoon onion powder
  • 1 teaspoon cayenne pepper
  • salt and ground black pepper to taste
  • 1 (8 ounce) package shredded Cheddar cheese, divided
  • 3 (8 ounce) packages shredded American cheese
  • 1 (8 ounce) bag potato chips (such as Lay's®), crushed
  • 1 cup shredded Cheddar cheese
  • ⅓ cup grated Parmesan cheese
  • butter-flavored cooking spray