Classic Baked Mac and Cheese

Baked mac and cheese turns simple pasta and cheese sauce into a proper oven-baked casserole: creamy in the middle, bubbling at the edges and crisp on top. This version follows the classic American style, with macaroni folded through a smooth Cheddar sauce made from a butter-and-flour roux, whole milk and a little Dijon mustard for savoury depth. The breadcrumb topping gives the dish its recognisable golden crust, while slightly undercooking the pasta helps it stay firm after baking. It works as a comforting vegetarian dinner, a generous side dish or a make-ahead meal that reheats well with a splash of milk if needed.
Cuisine style American comfort food
Flavor profile Cheesy • Creamy • Savoury
Techniques Boiling • Béchamel sauce • Baking
Key equipment Saucepan • Whisk • Baking dish • Oven
Cooking style Make-ahead friendly • Freezer-friendly • Crowd-friendly
Time commitment Under 1 hour

Why this recipe works

  • Smooth cheese sauce: A flour-thickened milk sauce gives the cheddar a stable, creamy base instead of a greasy or split finish.
  • Crisp top, soft centre: Breadcrumbs brown in the oven while the macaroni underneath stays coated in a rich, glossy sauce.
  • Familiar, satisfying flavour: Cheddar, butter, milk and a little mustard create the savoury richness people expect from baked mac and cheese.

Get the most out of this recipe

Timing notes

  • Rest before serving: Let the dish stand briefly after baking so the sauce settles and serves more neatly.
  • Best on the day: The topping is crispest when served soon after baking, while the centre is still hot and creamy.

Texture tips

  • Keep the pasta firm: Cook the macaroni just shy of al dente, as it will continue softening in the sauce and oven.
  • Build a smoother sauce: Add the milk gradually and whisk well between additions to keep the béchamel lump-free.
  • For extra colour: Use the grill only briefly at the end, watching closely so the breadcrumbs brown without burning.

Ingredient notes

  • Choose a good melting cheese: Cheddar gives the sauce its classic sharp, savoury flavour; Gruyère makes it nuttier and more deeply savoury.
  • Drain the pasta well: Excess water can loosen the sauce, so let the macaroni drain thoroughly before mixing it in.
  • Breadcrumb choice matters: Standard breadcrumbs make a compact golden crust, while panko gives a lighter, crunchier topping.

Make-ahead tips

  • Assemble ahead: The mac and cheese can be assembled in advance, covered and refrigerated, then baked until piping hot throughout.
  • Reheat gently: Warm leftovers in a 180°C (355°F) oven until piping hot, adding a little milk if the sauce looks dry.
  • Freeze in portions: Cool completely before freezing, then defrost overnight in the fridge before reheating.

Equipment you'll need

Ingredients
Instructions
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  1. Heat the oven to 200°C (390°F). Bring a large pot of well-salted water to the boil.
  2. Cook the macaroni until just shy of al dente, about 1 minute less than the packet suggests. Drain well in a colander and set aside.
  3. Melt the butter in a saucepan over medium heat. Whisk in the plain flour and cook for 1 minute until it smells lightly biscuity but has not browned.
  4. Gradually whisk in the whole milk until smooth, then bring to a gentle simmer, whisking often. Cook for 3 to 5 minutes until thick enough to coat the back of a spoon.
  5. Take the pan off the heat and whisk in the dijon mustard, fine sea salt, and black pepper. Stir in the cheddar cheese until fully melted and glossy.
  6. Add the drained macaroni to the cheese sauce and stir until evenly coated. Tip into a baking dish and level the top.
  7. Sprinkle the breadcrumbs evenly over the top. Bake for 15 to 18 minutes until bubbling at the edges and golden on top.
  8. Rest for 5 minutes so the sauce settles slightly, then serve hot. If you want extra colour, pop it under a hot grill briefly, watching closely.

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Recipe notes

Tips

  • Undercook the macaroni slightly so it stays pleasantly firm after baking.
  • For the smoothest sauce, add the milk gradually and whisk constantly to prevent lumps.
  • If serving to pregnant people, young children, older adults, or anyone immunocompromised, make sure the dish is baked until piping hot throughout.

Substitutions

  • Replace Cheddar cheese with Gruyere cheese for a nuttier, more savoury finish.
  • Replace Dijon mustard with whole-grain mustard for a milder heat and a little texture.
  • Replace Breadcrumbs with panko breadcrumbs for a lighter, crunchier topping.

Storage

  • Refrigerate up to 3 days
  • Cool completely, then cover and refrigerate. Reheat in a 180°C (355°F) oven until piping hot; add a splash of Whole milk if it looks dry. Freeze in portions for up to 2 months and defrost overnight in the fridge before reheating.

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Recipe overview

  • Servings: 4 servings
  • Total time: 50min (20min active)
  • Difficulty: Medium
  • Cuisine: American
  • Allergens:
    Gluten Milk Wheat
Freezer friendly Kid friendly

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