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Instant Pot Macaroni and Cheese

Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 28 Jan 2026

Meets Patient’s editorial guidelines

This easy Instant Pot macaroni and cheese is the ultimate vegetarian comfort food for busy weeknights. By cooking the pasta directly in the broth, every elbow is infused with savoury flavour, resulting in a rich and velvety sauce without the need for a traditional roux. A touch of yellow mustard and a pinch of cayenne pepper cut through the richness of the cheese, providing a subtle depth that makes this homemade version far superior to any shop-bought alternative.

Perfect for a quick family lunch or a satisfying midweek supper, this one-pot method significantly reduces the washing up. The combination of sharp Cheddar and salty Parmesan creates a sophisticated flavour profile that appeals to both children and adults. Serve it alongside a fresh green salad or some steamed broccoli for a balanced, heart-warming meal that is ready in less than twenty minutes.

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Ingredients for Instant Pot Macaroni and Cheese

  • 450g elbow macaroni

  • 950ml low-sodium chicken broth or vegetable broth

  • 3 tablespoons unsalted butter

  • 350g shredded sharp Cheddar cheese (350g tightly packed)

  • 60g shredded Parmesan cheese (about 60g )

  • 120ml soured cream

  • 30ml prepared yellow mustard

  • 1/8 teaspoons cayenne pepper

How to make Instant Pot Macaroni and Cheese

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Combine the macaroni, broth, and butter in the Instant Pot. Secure the lid and set the Pressure Release to Sealing. Select the Manual setting and set the cooking time for 6 minutes at high pressure.

Perform a quick release by moving the Pressure Release to Venting. Open the pot and stir in the cheeses, soured cream, mustard, and cayenne pepper. Let sit for 5 minutes to thicken, then stir again and serve.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 28 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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