Crockpot Mac and Cheese (Creamy, No-Boil)

This crockpot mac and cheese is impossibly creamy, and you never have to boil the pasta separately. Everything cooks together in the slow cooker into a rich, cheesy comfort dish that frees up your stovetop.

It is a lifesaver for holidays, potlucks, and busy weeknights when you need a crowd-pleasing side with almost no effort.

Recipe at a glanceJump to instructions ↓
  • Prep10 min
  • Cook2 hr
  • Total2 hr 10 min
  • Serves8
  • CourseSide Dish
  • CuisineAmerican
  • Ingredients10
  • Steps5

Written by · Updated September 2026

Why you’ll love this crockpot mac and cheese

  • No boiling: the pasta cooks right in the sauce.
  • Super creamy: a blend of cheeses and dairy keeps it luscious.
  • Frees your stovetop: perfect for holiday cooking.
  • Crowd favorite: kids and adults both go back for more.

Ingredients you’ll need

Freshly shredded cheese melts far more smoothly than pre-shredded bagged cheese.

  • 1 lb elbow macaroni (uncooked)
  • 4 cups whole milk
  • 1 (12 oz) can evaporated milk
  • 4 tablespoons butter, melted
  • 3 cups shredded sharp cheddar
  • 1 cup shredded mozzarella
  • 1/2 cup grated parmesan
  • 1 teaspoon salt
  • 1/2 teaspoon garlic powder
  • 1/2 teaspoon black pepper

How to make crockpot mac and cheese (step by step)

  1. Lightly grease the slow cooker. Add the uncooked macaroni, milk, evaporated milk, and melted butter.
  2. Stir in the salt, garlic powder, pepper, and about three-quarters of the shredded cheeses.
  3. Cover and cook on low for 1.5-2 hours, stirring once or twice, until the pasta is tender and the sauce is creamy.
  4. Stir in the remaining cheese until melted and smooth.
  5. Turn off the heat and let it sit for 10 minutes; it thickens as it stands. Serve warm.

Tips for the best results

  • Shred your own cheese. Pre-shredded cheese has anti-caking agents that make sauce grainy.
  • Stir occasionally. A couple of stirs prevent the pasta from sticking to the sides.
  • Do not overcook. Check at 1.5 hours; slow cookers vary and mushy pasta happens fast.

Variations & substitutions

  • Add cooked bacon or ham for a heartier dish.
  • Stir in a little cream cheese for extra richness.
  • Top with buttered breadcrumbs and broil briefly for a crunchy crust.

Storage & make-ahead

Refrigerate for up to 4 days. Reheat gently with a splash of milk to bring back the creamy texture.

Frequently asked questions

Do I really not need to boil the pasta?

Correct. The macaroni cooks directly in the milk and cheese sauce, absorbing flavor as it softens.

Why did my mac and cheese turn grainy?

This usually happens with pre-shredded cheese or too much heat. Use freshly shredded cheese and keep the slow cooker on low.

How long does it take?

About 1.5-2 hours on low. Start checking at 90 minutes because slow cookers vary and the pasta can overcook.

Can I keep it warm for a party?

Yes. Set the slow cooker to warm and stir in a splash of milk if it thickens too much.

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