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mac and cheese
Pork, Side Dishes, Spicy

Cast Iron Mac and Cheese

by Nick

One of my favorite things to see at a restaurant is a good macaroni and cheese dish that’s baked in individual cast iron dishes. The cast iron distributes the heat well so the mac and cheese is baked evenly and the edges are really crispy and delicious.

The problem of course is that I don’t have any mini cast iron dishes laying around to bake my mac and cheese in.

But I do happen to have one really large cast iron skillet that I figured would work just as well! You could put a ton of add-ins in this dish to make it your own. Lobster? Poblano peppers? Go crazy. I kept this version pretty standard though.

Serves 6.
Prep Time
Total Time
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Cast Iron Mac and Cheese

Cast Iron Mac and Cheese


  • 1 pound elbow macaroni
  • 8 ounces bacon
  • 1/2 medium onion, diced
  • 5 dried arbol peppers, crushed (or 2 Teaspoons red pepper flakes)
  • 4 Tablespoons unsalted butter
  • 4 Tablespoons all-purpose flour
  • 3 Cups whole milk
  • 16 ounces cheese (I used 8 ounces of Monterey Jack and 8 ounces cheddar cheese)
  • 1/4 Cup Parmesan cheese, grated
  • 1/4 Cup bread crumbs (optional)
  • Salt and  Pepper
  • Maybe a drizzle of olive oil

Helpful Equipment


1) Cook macaroni according to package instructions and set aside.

2) Cut up bacon into 1/4 inch cubes and cook in cast iron skillet over medium-high heat until very crispy and browned.  If bacon appears dry, drizzle with a bit of olive oil.

3) Remove bacon from pan and add onions and crushed peppers or red pepper flakes.  Cook until onions are soft, about 5 minutes, stirring continuously.  Remove onion mixture and combine with bacon.

Do not wash the skillet, but set it aside for later.

4) In a medium saucepan, melt butter and whisk in flour over medium heat.  Cook until the roux is a light brown mixture, about 5 minutes.  Continue to whisk and slowly pour in milk.  Once all the milk is incorporated, whisk until smooth and turn the heat down to low.

5) Whisk in shredded cheeses and a pinch of salt and pepper to taste.

6) Combine cheese sauce with elbow macaroni and stir in bacon mixture.  Pour the macaroni and cheese back into the cast iron skillet and top with grated Parmesan and/or bread crumbs.

7) Bake at 400 degrees for 30 minutes until cheese is browned.

8) Cool for 10 minutes before serving.

Prepping the Ingredients

I used some bacon and spicy Arbol peppers to give some flavor to the macaroni and cheese. Cooking all this stuff in the cast iron skillet that you eventually bake the mac and cheese in also seasons the skillet.

Start by chopping your bacon into pieces and then cook it in a large cast iron skillet over medium-high heat until the bacon is really crispy. If you want, add a drizzle of oil to the pan to get the bacon sizzling.

While the bacon cooks chop up an onion and also crunch your dried peppers if you’re using them. You can also just use red pepper flakes though.


The flavor party.

When the bacon is crispy, take it out of the pan and add your onion and dried peppers. Cook them in the bacon grease until the onions are soft. Then mix everything together and set it aside. Whatever you do, don’t clean or wipe out the skillet! That said, if there’s a pool of grease left over, pour out some of it. You just need a coat of oil.


Lots of flavors here.

Also, while this is happening, cook the elbow macaroni according to the package. I would recommend under-cooking it by a minute or two or else your mac and cheese might be a bit soggy.

Making the Cheese Sauce

This cheese sauce, like any good cheese sauce in my opinion, is based on a Roux which is just a mixture of flour and butter.

Start by melting the butter in a medium saucepan over medium heat. Once it’s melted, add your flour to the butter and start whisking! It’ll bubble a bit and start to turn slightly tan. If you’ve never made a roux before, it isn’t that hard. Just remember not to let it sit for too long or it’ll burn.

After about 4-5 minutes of cooking your roux should be a nice light tan/brown color. Like this:


The Roux is on!

Once it gets that color, slowly start whisking in your milk. This is the only tricky part of making a cheese sauce like this. If you add your milk too fast, then you can’t whisk all the roux in evenly so you’ll end up with a lumpy sauce. Don’t worry about it too much though, just don’t dump in all your milk at once and you’ll be fine.

Once all the milk is in the pot, it should have the consistency of a light gravy.

Then whisk in all your grated cheese and season with salt and pepper. The longer you stir it on the burner, the thicker it will get.

This was a really good cheese sauce!


Maybe my best cheese sauce ever!

The Skillet

Remember that skillet that you cooked the bacon and onions in? I really hope that you didn’t wash it. Here’s my dirty pan ready for baking!

cast iron

My favorite thing.

Back to the Macaroni

Once your cheese sauce is done, stir it into your drained macaroni. To be completely honest, this was very delicious just like this. If you don’t want to bake it or don’t have a cast iron skillet, it’s perfectly acceptable to serve it just like this!

creamy mac and cheese

You could eat it like this.

Baking the Dish

Assuming you do want to bake it though, stir in your bacon/onion/pepper mixture and then pour all of it back into your cast iron skillet. My skillet is a 15 inch skillet and it fit perfectly.

I didn’t have any bread crumbs around or I would’ve added some on top, but I did have some Parmesan so I grated some of that on top. I figured it would brown up nicely as well.

ready to go

Accidentally no bread crumbs!

Bake this for about 30 minutes at 400 degrees. The mac and cheese should have a nice browned crust. Be sure to let it cool for 5 minutes or so before serving it up!


This is hard to beat.

If you’re intimidated by any part of this recipe, just remember that it’s really hard to go wrong with mac and cheese. Even if your sauce is a bit lumpy or if you overcook the macaroni a bit, it’s still going to be delicious. You’d have to work to make this dish not delicious.

I really liked baking it in a cast iron dish because of the crispy edges, but like I said, you could definitely just serve this up as a creamy style mac and cheese dish also.

Bust out your cast iron and give this a shot!