Slow-Cooked Cheddar Macaroni and Cheese

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A velvety, comforting pasta dish that simmers gently in the slow cooker, perfect for turning simple pantry staples into a creamy, kid-approved dinner. This american-inspired slow cooker ready in about 255 minutes pairs elbow macaroni, whole milk, butter for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 500 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 15 min Cook: 240 min Serves 4 American cuisine 500 cal/serving
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Ingredients

Instructions

  1. Step 1: Place 8 oz elbow macaroni, 2 cups whole milk, 2 tbsp butter, 1/4 cup all-purpose flour, 1/2 tsp salt, and 1/4 tsp black pepper into the slow cooker, stirring until the flour dissolves and the mixture is smooth.
  2. Step 2: Cook on low for 4 hours, stirring once after 2 hours to prevent sticking, until the macaroni is tender and the sauce thickens to coat the back of a spoon.
  3. Step 3: Stir in 1 cup shredded cheddar cheese and 1/2 cup shredded mozzarella cheese until melted and creamy, about 3 minutes.

Equipment for this recipe

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Frequently asked questions

How long does Slow-Cooked Cheddar Macaroni and Cheese take to make?

Total time is about 255 minutes (15 min prep + 240 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Slow-Cooked Cheddar Macaroni and Cheese?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep elbow macaroni from drying out.

Can I substitute ingredients in Slow-Cooked Cheddar Macaroni and Cheese?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Slow-Cooked Cheddar Macaroni and Cheese for a different number of people?

The recipe is written for 4 servings. Multiply each ingredient by (your serving target / 4). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Slow-Cooked Cheddar Macaroni and Cheese?

American slow cooker like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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