Mashed Cauliflower // Stovetop or Instant Pot

Overhead shot of bowl of mashed cauliflower in grey bowl with swirls of butter.

Mashed Cauliflower is a delicious, low carb & keto friendly side dish. With 5 flavor variations and instructions for making it on the stove or in the Instant Pot.

I love a creamy side dish like Sour Cream Mashed Potatoes, Mashed Sweet Potatoes and Creamy Polenta. But when you’re looking for a low carb, keto-friendly option, cauliflower mash is where it’s at!

I instantly became obsessed with this recipe. So much so that I made it over, and over and over again. In so many different ways.

  • I made it on the stovetop.
  • I made it in the Instant Pot.
  • I added cheddar cheese to it.
  • I swirled it with sour cream.
  • I added garlic…

And today I’m sharing with you all my tips and tricks for making the BEST mashed cauliflower in 5 different ways!

This keto mashed cauliflower is perfect for any occasion, and I think you’ll love it.

Two hands holding bowl of cauliflower mash.

How to make Mashed Cauliflower

  • Cut cauliflower into large florets.
  • Place in steamer basket.
  • Steam 20 minutes.
  • Remove and puree/mash with 3 Tablespoons butter and optional mix-ins.

How to make Mashed Cauliflower in the Instant Pot

  • Trim stem of leaves off cauliflower, but leave head whole.
  • Place on trivet in pressure cooker and add 1 cup water.
  • Cook on MANUAL for 5 minutes. Quick release pressure.
  • Remove and puree/mash with 3 Tablespoons butter and optional mix-ins.

I have also tried steaming my cauliflower with chicken broth rather than water. I’ve found that it may add a bit more flavor to the cauliflower mash, but the taste difference isn’t too noticeable, so I’ll often just use what I have on hand.

Head of cauliflower in instant pot.

Note: If you prefer a thicker cauliflower mash, you can either either add your cauliflower to a colander and press out some of the water, or wrap it in a couple dish towels and squeeze out some of the water.

How long does it last?

  • It will keep in the fridge for up to three days. Note that it may begin to separate. Just give it a good stir before serving.

Can it be frozen?

  • You can freeze it for up to three months.

Overhead shot of cauliflower mash in bowl next to butter and sour cream.

Close up side view of bowl of mashed cauliflower.

How to season it:

Wondering what to add to give it extra flavor? Try these mix-ins:

Sour Cream Mashed Cauliflower with Chives

  • Add 1/4 cup sour cream and 1 Tablespoon chopped fresh chives.

Pesto Mashed Cauliflower

  • Add 2 Tablespoons prepare pesto.

Garlic Mashed Cauliflower with Parmesan

  • Saute 1 clove garlic with 3 Tablespoons butter before adding to the puree, and add in 1/4 cup parmesan cheese.

Cheddar Mashed Cauliflower with Chipotle

  • Add 1 Tablespoon minced chipotle in adobo and 1/4 cup cheddar cheese.

If you loved this recipe I would appreciate it so much if you would give it a star review! Also, be sure to snap a picture of your finished dish and share it with me on Instagram using the hashtag #platingsandpairings and tagging me @platingsandpairings. I’d love to hear what mix-ins you tried! 

For more great Platings and Pairings recipes, be sure to follow me on Pinterest, Facebook, YouTube and Twitter.

Tools for making Cauliflower Mash:

What to serve with Mashed Cauliflower

Cauliflower recipes:

Overhead shot of bowl of mashed cauliflower in grey bowl with swirls of butter.

Mashed Cauliflower // 5 Ways // Stovetop + Instant Pot

Mashed Cauliflower is a delicious, low carb & keto friendly side dish. With 5 flavor variations and instructions for making Stovetop Mashed Cauliflower or Instant Pot Mashed Cauliflower.
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Prep Time: 5 minutes
Cook Time: 15 minutes
Total Time: 20 minutes
Servings: 4 people

Ingredients

  • Water (or chicken broth)
  • 1 large head cauliflower
  • 3 Tablespoons unsalted butter
  • Salt and pepper (to taste)

Instructions

Stovetop

  • Cut cauliflower into large florets.
  • Add cauliflower to a steamer basket and place in a pot filled with water (or broth) to just below the basket. Bring to a boil, reduce heat, cover and steam for 15-20 minutes, until cauliflower is very tender.
  • Use a slotted spoon to transfer the cauliflower to a food processor. Add butter. Process until smooth. Alternatively, you can use a blender or immersion blender. Season liberally with salt and pepper, to taste.

Instant Pot

  • Trim leaves off cauliflower and trim stem. Leave cauliflower whole.
  • Add 1 cup water or broth to Instant Pot. Place trivet in pot and place cauliflower on top.
  • Place lid on Instant Pot and set valve to seal.
  • Cook on MANUAL high pressure for 5 minutes. It will take about 10 minutes for the pressure to build, then a countdown timer will begin.
  • Once the cook time is up, quick release the pressure and remove the lid.
  • Add cauliflower to a food processor along with butter. Puree until smooth. Alternatively, you can use a blender or immersion blender. Season liberally with salt and pepper, to taste.
Did you make this recipe?Mention @platingsandpairings or tag #platingsandpairings!

Equipment

Pressure cooker
Food processor
Steamer basket
Trivet

Nutrition

Calories: 128kcal | Carbohydrates: 10g | Protein: 4g | Fat: 9g | Saturated Fat: 6g | Cholesterol: 23mg | Sodium: 64mg | Potassium: 628mg | Fiber: 4g | Sugar: 4g | Vitamin A: 262IU | Vitamin C: 101mg | Calcium: 49mg | Iron: 1mg

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