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instant pot cauliflower mac and cheese in a white bowl
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4.93 from 13 votes

Instant Pot Cauliflower Mac and Cheese

Beat those winter blues with the ultimate comfort food: ultra creamy Instant Pot Cauliflower Mac and Cheese! This "healthier" version of homemade mac and cheese is packed with hidden bite-sized cauliflower pieces to give you a satisfying serving of veggies, proteins, and vitamins.
Prep Time5 minutes
Cook Time20 minutes
Total Time20 minutes
Course: Main Course, Side Dish
Cuisine: American
Diet: Vegetarian
Keyword: cauliflower mac and cheese pressure cooker, instant pot mac and cheese, pressure cooked mac and cheese
Servings: 6
Calories: 610kcal
Author: Kristina Tipps

Ingredients

  • 16 ounces elbow macaroni or other short pasta
  • 4 cups water
  • ½ head cauliflower chopped into ¼ inch pieces
  • 4 tablespoon butter
  • ¼ cup flour
  • 1 teaspoon paprika
  • 2 cups whole milk
  • ½ cup evaporated milk
  • 4 ounces cream cheese
  • 2 cups white cheddar cheese shredded
  • 2 cups extra sharp cheddar cheese shredded
  • 1 teaspoon salt
  • black pepper to taste

Instructions

  • Put 16 ounces elbow macaroni and florets of ½ head cauliflower in the inner pot of the Instant Pot. Pour in 4 cups water. Close and seal the lid. Set the pressure cooker to manual/pressure cook on high for 4 minutes (see notes for cook times).
  • Complete a controlled quick release of the pressure when done cooking. Remove the lid and drain the pasta. Set aside.
  • Set the Instant Pot to saute on high for 5 minutes. Add 4 tablespoon butter and melt, stirring with the whisk constantly for 1 minute. Once fully melted and frothy, add ¼ cup flour and continue to whisk constantly for 1 minute. Add 1 teaspoon paprika and stir.
  • Pour 2 cups whole milk and ½ cup evaporated milk into the pot. Add 4 ounces cream cheese, breaking up with a spoon as you mix the liquid into the roux. When the liquid begins to boil at the edges, slowly add 2 cups white cheddar cheese and 2 cups extra sharp cheddar cheese, whisking between additions. Season with 1 teaspoon salt and black pepper.
  • Turn off saute and whisk until the sauce is well combined and smooth. Remove the inner pot to a heat proof surface and add the cooked macaroni and cauliflower florets. Stir well and serve.

Notes

Storing: Store cauliflower mac and cheese in the fridge in an airtight container for up to 5 days. You can freeze it for up to 6 months using freezer safe storage bags or containers. To reheat, thaw in the fridge overnight, then heat in the microwave for a few minutes until warmed through. When frozen, the sauce will change consistency but will become smooth and creamy again once warmed up.
Vegetable variations: grated carrots, peas and chopped green beans are a few ideas for other vegetables that taste great in macaroni and cheese. 

Nutrition

Serving: 4oz | Calories: 610kcal | Carbohydrates: 53g | Protein: 25g | Fat: 33g | Saturated Fat: 19g | Polyunsaturated Fat: 2g | Monounsaturated Fat: 8g | Trans Fat: 0.2g | Cholesterol: 95mg | Sodium: 793mg | Potassium: 418mg | Fiber: 3g | Sugar: 7g | Vitamin A: 1074IU | Vitamin C: 18mg | Calcium: 529mg | Iron: 1mg