Imagine coming home to a meal that cooked itself. The smell of toasted cheese and pasta hits you the second you open the door. Your family is already hovering around the kitchen, spoons in hand.This isn’t just another side dish. This is the main event. It requires less effort than deciding what to watch on Netflix.You dump the ingredients in one pot and walk away. A few hours later, you’re a hero. Let’s get to it.
What Makes This Recipe A Game-Changer
This isn’t your boxed mac and cheese with powdered “cheese product.” This is the real deal.
The slow cooker works its magic by gently heating the milk and cheese, preventing them from breaking and becoming greasy. You get a sauce so creamy and smooth, it’s almost unfair.
It’s the ultimate set-it-and-forget-it meal. You have better things to do than babysit a pot on the stove.
This recipe frees you up to do, well, anything else. Who doesn’t love a kitchen appliance that does all the work for you?
Your Shopping List For Cheesy Greatness
Gather these simple ingredients. No obscure, hard-to-find items here.
- 1 pound (16 oz) elbow macaroni, uncooked
- 4 cups whole milk
- 1 (12 oz) can evaporated milk
- 1/2 cup (1 stick) unsalted butter, melted
- 2 large eggs, lightly beaten
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1/2 teaspoon garlic powder
- 1/2 teaspoon dry mustard
- 4 cups shredded sharp cheddar cheese
- 2 cups shredded Gruyère or Monterey Jack cheese
- 1/2 cup grated Parmesan cheese
How To Build Your Masterpiece
Follow these steps.
It’s so simple, you could probably do it with your eyes closed.
- Spray your slow cooker. Give that insert a good coating of non-stick spray. Trust me, you don’t want to be scrubbing baked-on cheese later.
- Combine the wet ingredients. In a large bowl, whisk together the whole milk, evaporated milk, melted butter, eggs, salt, pepper, garlic powder, and dry mustard until smooth.
- Layer the pasta and cheese. Pour the uncooked macaroni into the slow cooker. Add all of the shredded cheddar and Gruyère cheeses.
Toss everything with your hands to combine.
- Add the liquid. Pour the milk and egg mixture over the pasta and cheese. Stir everything gently to make sure the liquid is evenly distributed.
- Top it off. Sprinkle the grated Parmesan cheese evenly over the top. Do not stir again.
- Cook it. Cover and cook on LOW for 2 to 2.5 hours. Do not cook on high.
Seriously. We’re not rushing perfection here.
- Check for doneness. The mac and cheese is ready when the pasta is tender and the liquid is mostly absorbed. Give it a gentle stir before serving.
Storing Your Leftovers (If You Have Any)
Let the mac and cheese cool completely before storing it.
Transfer it to an airtight container. It will keep in the refrigerator for up to 4 days.
To reheat, add a splash of milk to a portion and microwave it, stirring occasionally. You can also reheat it in a saucepan over low heat, again with a bit of milk to bring back the creaminess.
Why This Recipe Wins At Life
This recipe is a multitasking champion.
It’s perfect for busy weeknights, potlucks, and holiday dinners. You make one dish, and it feeds a crowd. It eliminates the stress of last-minute cooking.
It’s also incredibly forgiving.
The slow, gentle heat means you’re less likely to end up with a curdled or grainy sauce. You get consistently delicious, restaurant-quality mac and cheese from your own kitchen. What’s not to love?
Common Mistakes You Need To Avoid
People mess this up by being impatient.
Cooking on high heat is the number one mistake. It will cause the milk to scorch and the sauce to break. You’ll end up with a greasy, separated mess.
Using pre-shredded bagged cheese is mistake number two.
Those cheeses are coated in anti-caking agents like potato starch or cellulose, which prevent them from melting smoothly. Take the extra two minutes to shred your own cheese. I promise, it’s worth it.
Overcooking is the final pitfall.
The pasta will continue to absorb liquid as it sits. If you cook it until it looks “done” in the pot, it will be mushy on your plate. Aim for al dente when you check it.
Shake Things Up: Flavor Alternatives
Bored of the classic?
IMO, you’re crazy, but here are some ideas.
- Add Protein: Stir in cooked, crumbled bacon, diced ham, or shredded rotisserie chicken during the last 30 minutes of cooking.
- Spice It Up: Add a diced jalapeño or a can of diced green chiles for a little kick.
- Go Gourmet: Swap the cheddar for Gouda, Fontina, or a smoked cheese for a deeper flavor profile.
- Add Veggies: Mix in thawed frozen peas, chopped steamed broccoli, or sautéed mushrooms.
Frequently Asked Questions
Can I use a different type of pasta?
You can, but stick to short, sturdy shapes. Cavatappi, shells, or penne work well. Avoid long, thin pasta like spaghetti or linguine.
They don’t hold the sauce the same way and can become a tangled mess.
Why do I have to add eggs?
The eggs act as a stabilizer and emulsifier. They help bind the sauce together, giving it a rich, custardy texture that doesn’t separate. Don’t skip them.
FYI, you won’t taste “eggy” flavor at all.
My sauce seems a little thin. What did I do wrong?
Probably nothing! The sauce will thicken significantly as it cools.
Give it a good stir and let it sit for 10-15 minutes off the heat before serving. If it’s still too thin for your liking, you can stir in a slurry of 1 tablespoon of cornstarch mixed with 2 tablespoons of milk and let it cook for another 10-15 minutes.
Can I make this recipe ahead of time?
Absolutely. You can assemble everything in the slow cooker insert the night before.
Cover it tightly and keep it in the refrigerator. When you’re ready to cook, let it sit on the counter for about 20-30 minutes to take the chill off, then cook as directed. You may need to add 15-20 extra minutes to the cooking time.
Final Thoughts
This slow cooker mac and cheese is a cheat code for dinner.
It delivers maximum flavor with minimal effort. You get a creamy, decadent dish that makes everyone happy. Stop complicating your life.
Make this recipe. Become the mac and cheese legend you were always meant to be.
PrintSlow Cooker Mac and Cheese
- Total Time: 2 hours 40 minutes
- Yield: 8–10 servings 1x
- Diet: Vegetarian
Description
Slow Cooker Mac and Cheese is a creamy, decadent, and easy-to-make comfort food. Made with a combination of cheddar, Gruyère, and Parmesan cheeses, milk, butter, and eggs, it’s a set-it-and-forget-it dish perfect for busy weeknights, potlucks, or holiday dinners.
Ingredients
1 pound (16 oz) elbow macaroni, uncooked
4 cups whole milk
1 (12 oz) can evaporated milk
1/2 cup unsalted butter, melted
2 large eggs, lightly beaten
1 teaspoon salt
1/2 teaspoon black pepper
1/2 teaspoon garlic powder
1/2 teaspoon dry mustard
4 cups shredded sharp cheddar cheese
2 cups shredded Gruyère or Monterey Jack cheese
1/2 cup grated Parmesan cheese
Instructions
1. Spray slow cooker with non-stick cooking spray.
2. In a large bowl, whisk together whole milk, evaporated milk, melted butter, eggs, salt, black pepper, garlic powder, and dry mustard until smooth.
3. Pour uncooked macaroni into the slow cooker.
4. Add shredded cheddar and Gruyère cheeses; toss with hands to combine.
5. Pour milk and egg mixture over pasta and cheese; stir gently to distribute evenly.
6. Sprinkle grated Parmesan over the top; do not stir.
7. Cover and cook on LOW for 2 to 2.5 hours without opening lid.
8. Check pasta tenderness; gently stir before serving.
Notes
Store leftovers in an airtight container in the refrigerator for up to 4 days.
Reheat with a splash of milk in microwave or over low heat on stovetop.
Avoid pre-shredded bagged cheese; shred blocks for smooth sauce.
Do not cook on HIGH; slow and low prevents sauce from breaking.
Optional mix-ins: cooked bacon, ham, shredded chicken, jalapeños, green chiles.
Optional cheese swaps: Gouda, Fontina, smoked cheese.
Optional veggies: peas, steamed broccoli, sautéed mushrooms.
- Prep Time: 10 minutes
- Cook Time: 2 hours 30 minutes
- Category: Dinner, Side Dish, Comfort Food
- Method: Slow Cooker
- Cuisine: American
Nutrition
- Serving Size: 1 cup
- Calories: 530
- Sugar: 6 g
- Sodium: 950 mg
- Fat: 29 g
- Saturated Fat: 18 g
- Unsaturated Fat: 9 g
- Trans Fat: 0 g
- Carbohydrates: 46 g
- Fiber: 2 g
- Protein: 21 g
- Cholesterol: 105 mg