This slow cooker 3-ingredient sour cream macaroni is pure college nostalgia for me. My sister first made it in her tiny off-campus apartment when we were both trying to eat well on a strict budget, and it instantly became our spring comfort food. It tastes surprisingly gourmet for how simple it is—just pasta, sour cream, and cheese—but the slow cooker turns everything into a velvety, tangy, super-rich sauce that hugs every elbow. It’s the kind of set-it-and-forget-it recipe that works on busy workdays, but still feels special enough to crave year after year.
Serve this creamy sour cream macaroni straight from the slow cooker while it’s piping hot and extra saucy. I like to pair it with something fresh and crunchy to balance the richness—think a simple green salad with a sharp vinaigrette, roasted broccoli, or sliced cherry tomatoes tossed with a pinch of salt. Garlic bread or buttered toast soldiers are great for scooping up the extra sauce. For a more complete meal, add a simple protein on the side like rotisserie chicken, grilled sausages, or pan-seared pork chops.
Slow Cooker 3-Ingredient Sour Cream MacaroniServings: 6
Ingredients
1 pound (16 ounces) uncooked elbow macaroni
3 cups full-fat sour cream
3 cups shredded mild or medium cheddar cheese, divided
Directions
Spray the inside of a 4- to 6-quart slow cooker with nonstick cooking spray or lightly grease it with butter to help prevent sticking.
Add the uncooked elbow macaroni directly to the slow cooker and spread it into an even layer.
In a medium bowl, stir together the sour cream and 2 1/2 cups of the shredded cheddar cheese until well combined. The mixture will be very thick and creamy.
Spoon the sour cream and cheese mixture over the dry macaroni. Use a spatula to gently fold and stir until most of the pasta is coated. It will look thick and a bit dry in spots, but the pasta will release starch and moisture as it cooks.
Cover the slow cooker with the lid and cook on LOW for 1 1/2 to 2 1/2 hours, stirring every 30 minutes. Each time you stir, scrape along the bottom and sides to prevent sticking and help the sauce become smooth and velvety.
After about 1 1/2 hours, start checking the macaroni more closely. The pasta is done when the elbows are plump and tender but not mushy, and the sauce looks thick, glossy, and creamy with no dry pockets of sour cream.
Once the pasta is cooked to your liking, sprinkle the remaining 1/2 cup shredded cheddar cheese evenly over the top. Cover and let it sit on LOW for 5 to 10 minutes, just until the cheese melts into the surface.
Give the macaroni a final gentle stir to swirl the melted cheese through the top layer. If the mixture seems too thick, you can stir in 1 to 2 tablespoons of hot water at a time until it loosens slightly, keeping it rich but scoopable.
Turn the slow cooker to WARM and serve the sour cream macaroni straight from the crock. For the best texture, enjoy within 30 to 45 minutes of finishing so the pasta stays plump and the sauce stays silky.
Variations & Tips
Use full-fat sour cream for the richest, smoothest sauce; light sour cream can separate in the slow cooker. If you like a sharper flavor, swap in sharp cheddar for some or all of the cheese, or use a mix of cheddar and Monterey Jack (still counting as one cheese ingredient). To stretch this meal for a crowd, serve the macaroni as a base and let everyone top their own bowls with pantry staples like hot sauce, black pepper, or dried herbs. For a slightly looser sauce, stir in a few tablespoons of hot water or reserved pasta cooking water (if you parboil the pasta first) at the end until it looks glossy and creamy. If your slow cooker runs hot, check the pasta early around the 1 1/4-hour mark to avoid overcooking. Leftovers will thicken as they cool; reheat gently with a splash of water or milk, stirring often, until the sauce becomes silky again.
