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A bowl of creamy Instant Pot Mac and Cheese sits in front of an electric pressure cooker, with another bowl of macaroni in the background.

Instant Pot Mac and Cheese

Made with real sharp cheddar and no roux or extra fuss, this Instant Pot Mac and Cheese is simple, creamy, cozy, and always hits the spot. It's ready in under 10 minutes and uses just one pot, which means less cleanup and more time to relax. You can serve it fresh, reheat it the next day, or freeze small portions for later. It’s flexible, family-friendly, and works for just about any mealtime, whether it's for weeknight dinners, school lunches, busy weekends, or game days.
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Prep Time: 5 minutes
Cook Time: 4 minutes
Total Time: 9 minutes
Course: Lunch, Main Course, Side Dish
Cuisine: American
Keyword: Instant Pot Mac and Cheese, Instant Pot Macaroni and Cheese
Servings: 6
Calories: 492kcal
Author: Mandy Applegate

Equipment

Ingredients

  • 1 pound elbow macaroni about 4 cups uncooked
  • 4 cups water
  • 1 teaspoon salt
  • 2 tablespoons unsalted butter
  • 1 cup whole milk or evaporated milk for a richer texture
  • 2 cups shredded cheddar cheese mild or medium — avoid orange-dyed cheese for best texture
  • ¼ teaspoon garlic powder optional, for extra flavor
US Customary - Metric

Instructions

  • Add the uncooked macaroni, water, salt, and butter to the Instant Pot. Stir to combine.
    1 pound elbow macaroni, 4 cups water, 1 teaspoon salt, 2 tablespoons unsalted butter
  • Secure the lid and set the valve to Sealing. Cook on High Pressure for 4 minutes.
  • Once the timer goes off, quick release the pressure by carefully turning the valve to Venting.
  • Open the lid and stir the pasta. It may look a little watery at first, but the liquid will absorb and thicken as you stir.
  • Pour in the milk and add the shredded cheese and garlic powder (if using). Stir until the cheese is completely melted and the sauce is smooth and creamy.
    1 cup whole milk, 2 cups shredded cheddar cheese, ¼ teaspoon garlic powder
  • Let the mac and cheese sit for 2 to 3 minutes to thicken before serving.

Notes

  • Use the Right Pasta: Elbow macaroni cooks evenly in the Instant Pot and holds the creamy cheese sauce well. Skip anything too thick or oversized for the best texture.
  • Don’t Skip the Butter: Adding butter with the water helps coat the pasta and gives the final dish a richer flavor. It also prevents sticking.
  • Quick Release with Care: The quick release lets the pasta stop cooking right away, so it stays firm. Always use a towel or long utensil to turn the valve to avoid the steam.
  • Expect Some Liquid: If the macaroni looks too wet after pressure cooking, just keep stirring. That extra water helps melt the cheese evenly and disappears fast.
  • Use Whole or Evaporated Milk: Both options make the sauce creamier and less likely to separate. Skim milk won’t give the same result.
  • Shred Your Own Cheese: Pre-shredded cheese often doesn’t melt as smoothly because of added starches. A block of cheddar melts better and tastes fresher.
  • Swap the Cheese: No cheddar? Try Monterey Jack, Gouda, Fontina, Gruyere, or Provolone—these all melt well and stay creamy. If you want extra stretch, try to add stringy cheese like mozzarella.
  • Add a Kick: For a little heat, stir in a dash of hot sauce or a pinch of cayenne or black pepper. It gives the cheese sauce a subtle edge without overpowering the flavor.

Nutrition

Calories: 492kcal | Carbohydrates: 59g | Protein: 20g | Fat: 19g | Saturated Fat: 11g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 0.2g | Cholesterol: 53mg | Sodium: 662mg | Potassium: 261mg | Fiber: 2g | Sugar: 4g | Vitamin A: 560IU | Vitamin C: 0.002mg | Calcium: 338mg | Iron: 1mg
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