Slow cooker mac and cheese is the ultimate comfort food, delivering rich, ultra-creamy pasta coated in a blend of melty cheeses. This hands-off recipe is perfect for busy days when you want a homemade meal without hovering over the stove. With just a few simple ingredients and a couple of hours in the slow cooker, you’ll have a warm, satisfying dish that’s perfect for family dinners, potlucks, or holiday gatherings.

Why You’ll Love This Recipe

This mac and cheese is everything you love about the classic dish—creamy, cheesy, and indulgent—with the added ease of slow cooker preparation. There’s no boiling, draining, or baking required. The slow cooking process allows the pasta to absorb the flavors of the cheese and cream, resulting in a smooth and luxurious texture. It’s highly customizable, incredibly kid-friendly, and great for serving a crowd with minimal effort.

Ingredients

2 cups elbow macaroni (uncooked)
2 cups shredded sharp cheddar cheese
1 cup shredded mozzarella cheese
1/2 cup grated Parmesan cheese
2 cups whole milk
1 cup heavy cream
4 tablespoons unsalted butter, melted
1 teaspoon garlic powder
1 teaspoon onion powder
1/2 teaspoon salt
1/2 teaspoon black pepper
1/2 teaspoon dry mustard (optional)

(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)

Directions

Spray the inside of your slow cooker with non-stick cooking spray to prevent sticking.
Add uncooked elbow macaroni, shredded cheddar cheese, mozzarella, and Parmesan cheese to the slow cooker.
Pour in the milk, heavy cream, and melted butter. Stir gently to combine all ingredients.
Season with garlic powder, onion powder, salt, black pepper, and dry mustard (if using). Stir again to distribute the seasonings evenly.
Cover and cook on low for 2–3 hours, stirring every 30–45 minutes to ensure even cooking and creaminess.
Once the pasta is tender and the cheese sauce is smooth and fully melted, give it a final stir and serve warm.

Servings and Timing

Servings: 6 servings
Prep Time: 5 minutes
Cooking Time: 2–3 hours
Total Time: 2 hours 5 minutes

Variations

Bacon Mac and Cheese: Stir in cooked, crumbled bacon just before serving.
Spicy Version: Add a pinch of cayenne pepper or chopped jalapeños for heat.
Four-Cheese Blend: Replace mozzarella with Monterey Jack, Gouda, or Fontina for a deeper cheese flavor.
Breadcrumb Topping: For added texture, sprinkle toasted breadcrumbs on top just before serving.
Vegetable Addition: Mix in steamed broccoli, peas, or roasted red peppers for added nutrition and color.

Storage/Reheating

Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently on the stovetop or in the microwave, adding a splash of milk or cream to loosen the sauce if needed. This dish is not ideal for freezing, as the creamy texture may change upon thawing.

FAQs

Can I use pre-shredded cheese?

Yes, but freshly shredded cheese is preferred for better melting and a smoother sauce without added anti-caking agents.

Can I cook it on high instead of low?

It is not recommended. Cooking on high may cause uneven texture or curdling. Stick with low for best results.

Do I need to pre-cook the pasta?

No, the uncooked elbow macaroni cooks directly in the slow cooker as it absorbs the creamy sauce.

Can I make this ahead of time?

You can prepare the ingredients ahead, refrigerate, and start cooking a few hours before serving. Avoid letting it sit too long after cooking to prevent overcooked pasta.

What type of milk works best?

Whole milk is recommended for its richness, but 2% can be used with slightly less creaminess.

Can I double the recipe?

Yes, but use a larger slow cooker and extend the cooking time slightly, stirring more frequently.

Is it okay to skip the Parmesan?

Yes, though Parmesan adds depth of flavor. You can substitute with more cheddar or another hard cheese.

Can I add protein?

Absolutely. Shredded rotisserie chicken, ham, or even ground beef work well mixed in at the end.

How do I prevent the cheese from becoming grainy?

Avoid overcooking and stir regularly. Using freshly shredded cheese also helps maintain a smooth consistency.

What can I serve with mac and cheese?

Pair with a green salad, steamed vegetables, grilled chicken, or barbecue meats for a complete meal.

Conclusion

Slow cooker mac and cheese is a comforting, ultra-creamy classic made even easier with the convenience of your slow cooker. With its rich cheese blend and hands-free cooking method, it’s the perfect dish for feeding your family or entertaining a crowd. Customize it with your favorite add-ins or serve it as-is for a satisfying and simple comfort food favorite.

Slow Cooker Mac and Cheese

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Author: Mari
Total Time: 2 hours 5 minutes
Yield: 6 servings 1x
Diet: Vegetarian

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Description

This Slow Cooker Mac and Cheese is the ultimate comfort food—rich, ultra creamy, and packed with cheesy goodness. Made with three types of cheese and simple pantry ingredients, it’s an easy dump-and-go meal perfect for busy weeknights, potlucks, or holiday gatherings.

Instructions

Lightly spray the inside of your slow cooker with non-stick cooking spray.
Add elbow macaroni, cheddar, mozzarella, and Parmesan cheese.
Pour in milk, heavy cream, and melted butter. Stir everything together.
Add garlic powder, onion powder, salt, pepper, and dry mustard (if using). Mix well.
Cover and cook on low for 2–3 hours, stirring occasionally.