Slow Cooker 3 Cheese Macaroni And Cheese

There's something incredibly comforting about a creamy and cheesy Macaroni and Cheese made with 3 types of cheese, and when it's made effortlessly in your slow cooker, it's even better...

Three Cheese Macaroni and Cheese in a bowl next to a small salad and a glass of red wine
Macaroni and Cheese.  What's not to love?  It's truly the ultimate in comfort food.

This 3 Cheese Macaroni and Cheese is made with a blend of shredded Fontina, White Cheddar and Sharp Cheddar Cheeses, a creamy, extra cheesy sauce and an additional heavy sprinkling of Sharp Cheddar over the top.  It's hard to eat just one bowl, trust me.

Three individual piles of shredded Fontina, White Cheddar and Sharp Cheddar Cheeses on a metal tray with measuring spoons and a cheese grater

It begins with already cooked noodles and to the noodles I add melted butter, the three cheeses, eggs, sour cream, spices, milk and a homemade variation of Mornay Sauce.  Mornay sauce is a simple white sauce which is typically made with Swiss cheese and/or Parmesan.  For this macaroni and cheese recipe, I chose to substitute shredded sharp cheddar cheese to enhance the cheddar flavor.

Melted cheese in a bowl plated next to a small jar of milk and a small plate of shredded cheddar cheese

The first step to making the sauce is to make the roux, which is simply combining melted butter with flour.  After stirring and cooking for about 2 to 3 minutes, whisk in milk and continue whisking until the sauce thickens, which will happen quickly.  Simmer for a few additional minutes, then stir in the shredded cheddar.  Easy, right?  The sauce can even be made a day ahead of time and kept in the refrigerator until you're ready for it.

A large spoonful of Three Cheese Macaroni and Cheese from a slow cooker A slow cooker can be your best friend in the kitchen.  It's perfect if you're cooking for a family or if you're cooking for one.  It's the easiest way to prepare dinner and takes no effort at all.

This 3 Cheese Macaroni and Cheese is made with a blend of shredded Fontina, White Cheddar and Sharp Cheddar Cheeses, a creamy, extra cheesy sauce and an additional heavy sprinkling of Sharp Cheddar over the top. It's hard to eat just one bowl, trust me.

Slow Cooker 3 Cheese Macaroni And Cheese

This 3 Cheese Macaroni and Cheese with a blend of shredded Fontina, White Cheddar and Sharp Cheddar Cheeses. It's hard to eat just one bowl, trust me.
5 from 1 vote
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Prep Time: 20 minutes
Cook Time: 3 hours
Total Time: 3 hours 20 minutes
Course: Main Dish
Servings: 8 servings
Author: Joanie Zisk



  • 3 tablespoons butter
  • 3 tablespoons all-purpose flour
  • 1 cup milk
  • 1 cup cheddar cheese , shredded
  • salt , to taste


  • 2 cups uncooked elbow macaroni
  • 4 tablespoons butter , melted (1/2 stick)
  • 2 cups Cheddar cheese , shredded, plus 1 additional cup for topping (3 cups total)
  • 1 cup Fontina cheese , shredded
  • 1 cup White Cheddar cheese , shredded
  • 3 eggs , beaten
  • 1/2 cup sour cream
  • 1 cup milk
  • 1/2 teaspoon dry mustard
  • 1/2 teaspoon salt
  • 1/2 teaspoon black pepper


  • In a small saucepan, melt the butter over low heat. Increase the heat to medium and blend in the flour. Cook slowly, stirring, until the butter and flour cook together for 2 minutes (do not allow the roux to brown).
  • Slowly whisk in the milk and continue to whisk until the sauce thickens and comes to a boil, about 2 to 3 minutes. Reduce heat to a simmer and stir in the cheese. Continue to cook, stirring until thickened, about 5 minutes. Remove from heat. Set aside.
  • In a large pot of boiling water, cook the macaroni to al dente.
  • Drain and set aside.
  • In the slow cooker, combine the butter, 2 cups of the shredded Cheddar, the Fontina, the White Cheddar cheeses, the eggs, and the sour cream together.
  • Slowly stir in the milk, dry mustard, salt, and pepper.
  • Add the drained macaroni and stir again.
  • Top with the additional cup of shredded cheddar cheese.
  • Set the slow cooker on low setting and cook for 3 hours, stirring occasionally.

The information shown is an estimate provided by an online nutrition calculator. It should not be considered a substitute for a professional nutritionist’s advice.

About The Author

64 thoughts on “Slow Cooker 3 Cheese Macaroni And Cheese”

  1. I like to make stuffed bell peppers in a slow cooker, but I need a new slow cooker! Haven’t had one for a couple years 🙂

  2. So fun Joanie! I used to make crockpot Mac and cheese for an all day scrapbook party every New Year’s Day! Mitch is looking over my shoulder, whispering “yeah…USED TO.” Guess I better get to making some again!

  3. Elizabeth Howard

    I love a good old fashioned beef roast with vegetables. Not only does it smell great buy it tastes great.

  4. 5 stars
    My favoeute slow cooker meal is likely chili. I live in the Midwest and on a cool fall or cold winter evening nothing hits the spot like chili. Hubby loves deer chili and I add sausage to make a bit more flavorful. It comes out great.

  5. 4 stars
    What an awesome recipe, we love mac n cheese in the crockpot, and I’ll certainly have to try this one, its similar to one I often use, but I’m always up for a new take. I love making Mexican Chicken in the crockpot – its only three ingredients – win!


  6. My favorite meal to make in the slow cooker would have to be bbq ribs, they come out better than when I bake them. I have always baked my macaroni and cheese but I will definitely have to try this out.

  7. It’s hard to choose which is my favorite. I like to make a pulled pork for my husband who is from North Carolina. He seems to like it.

  8. Marsha | Marsha's Baking Addiction

    Mac and cheese is one of my favourite comfort meals, and this one looks absolutely delicious!

  9. Gwen @simplyhealthyfamily

    I had no idea you could make Mac&Cheese in a slow cooker! Score! I love making smoked turkey & white bean soup.

  10. My favorite meal from the crockpot is meat sauce for pasta. I’ve never been a fan of meatballs but love a thick tomato sauce with ground beef, kielbasa, etc.

  11. Maria Juliana Armenta

    I love to cook beef and pork because the results I obtain after cooking are amazing. The flavor is the best!

  12. allie @ Through Her Looking Glass

    5 stars
    Three cheeses Joanie????? Looks absolutely delicious! Pass me a fork!!!! My crockpot switches to warm after cooking also and I love that feature! Have a beautiful weekend. xo

  13. Oh that looks amazing! I love this idea, and what a perfect fall comfort food! I love using my crockpot (with shhh the broken lid) to make pulled pork. I could go for some right now in fact!

  14. Andi @ The Weary Chef

    I love my slow cooker too! And this Mac and Cheese will surely hit the spot at my house! Can’t wait to try this!

  15. Julie @ Julie's Eats & Treats

    Oh wow! This looks amazing. Love that it uses three cheeses. Yes, you’re right. The slow cooker is the most valuable appliance out there!

  16. Dorothy at Shockingly Delicious

    My fave meal in a slow cooker is chicken thighs, but now I am sorely tempted by your mac ‘n cheese!

  17. I love using slow cookers to make dinner. My favorite meal to fix that way is probably ham and beans. I haven’t made many pasta dishes in the slow cooker, but your macaroni and cheese sounds delicious!

  18. Valerie | From Valerie's Kitchen

    I’ve never tried doing mac and cheese in the slow cooker but it looks great! This would be an easy, comforting meal for the kids before they head out trick or treating on Halloween.

    1. That’s a great idea, Valerie. It would be perfect to serve out before the kids go trick or treating.

  19. Sabrina @ Dinner, then Dessert

    I’ve never made macaroni and cheese in the slow cooker before! It looks so creamy and delicious!

  20. 5 stars
    My favorite meal to slow cook would be beef stew, as it makes the house smell delicious and everyone loves it!

    1. I love how the house smells when I’ve got something cooking in my slow cooker. Beef Stew would be absolutely delicious!

  21. Kimberly @ The Daring Gourmet

    I’ve never thought to make macaroni cheese in my slow cooker, what a great idea!

  22. That looks like a delicious dinner that would be perfect for a family of boys! I’ll definitely have to try this recipe! Thanks for sharing.

  23. I love to make barbecue chicken in a crockpot! I pour dr pepper all over a frozen chicken breast and I had different seasonings.. It’s So easy and everyone in my family loves it.

  24. Kacey @ The Cookie Writer

    I LOVE my Hamilton Beach Slow Cooker. So much so that everyone in my family has received one as a gift, lol. I am so intrigued by slow cooker mac and cheese! Going to give this a try because I do love homemade mac and cheese 🙂 Wish I could enter, but I guess I should not be greedy and enjoy the awesome slow cooker I have 🙂

    1. What a great gift to give your family members, Kacey. If you love creamy and cheesy mac and cheese, I’ll bet you’ll love this recipe. My family sure does 🙂 – If you make it, I’d love to know what you think.

  25. I could definitely use a new slow cooker. I have had mine since we were married and it has seen better days. Your mac n cheese looks pretty incredible!

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