Instant Pot Mashed Cauliflower — Keto & Gluten-Free Recipe

Instant Pot Mashed Cauliflower is a delicious low‑carb alternative to traditional mashed potatoes. This recipe yields a buttery, creamy cauliflower mash that works as a healthy, versatile side dish for keto and low‑carb meals.

Instant Pot Mashed Cauliflower

If you miss mashed potatoes while following a low‑carb or keto plan, this mashed cauliflower is a fantastic swap. It’s simple, fast, and requires just a handful of ingredients to make a rich, buttery mash with a mild garlic flavor.

With only six main ingredients, the Instant Pot method is especially convenient and nearly foolproof. Finish with a pat of butter, a drizzle of keto gravy, or serve alongside roasted or braised meats for a satisfying plate.

Mashed Cauliflower Ingredients

• 1 head cauliflower, cut into florets
• 1/3 cup heavy cream
• 3 tablespoons unsalted butter
• 1 teaspoon salt (adjust to taste)
• 1/2 teaspoon black pepper
• 1/4 teaspoon garlic powder

This list makes a basic, buttery, and slightly garlicky cauliflower mash. If you prefer a cheesy version, stir in shredded cheese while the mash is warm. Optional toppings like sour cream, chives, crispy bacon, or parmesan also work well.

How to make cauliflower mash

You can make cauliflower mash in the Instant Pot, on the stovetop, or in the microwave. All methods aim to cook the florets until very tender, then mash and season to taste.

Instant Pot Directions – Instant Pot Cauliflower Mash

1. Wash the cauliflower and cut it into even‑sized florets. Place a trivet or steamer basket in the bottom of the Instant Pot and add 1 cup of water.
2. Arrange the cauliflower on the trivet. Close the lid and set the valve to sealed. Select Manual / High Pressure and set the time to 1 minute.
3. When the cook time ends, perform a quick pressure release. Carefully remove the lid, lift out the trivet, and drain any remaining water. Return the cauliflower to the pot or transfer to a large bowl.
4. Add the heavy cream, butter, salt, black pepper, and garlic powder. Use a hand mixer, immersion blender, or potato masher to blend until smooth and creamy. Adjust seasoning as needed.
5. Optional: For cheesy mashed cauliflower, fold in 1/2–1 cup shredded cheese while the mash is hot so it melts evenly. If needed, use the sauté function briefly to melt the cheese—stir constantly to avoid burning.
6. Serve hot, topped with additional butter, chopped chives, or crispy bacon if desired.

Notes: Add mix‑ins like cream cheese, sour cream, or grated parmesan to change the texture and flavor. Stir gently to keep the mash light and fluffy.

Stove Top Directions

Place florets in a saucepan with about 1/2 inch of water. Bring to a boil, then cover and simmer for 8–9 minutes until the cauliflower is very tender. Drain well, return the cauliflower to the pan over low heat, add the cream, butter, salt, pepper, and garlic powder, and mash until smooth. Top with extra butter if you like.

Microwave Directions

Place florets in a microwave‑safe bowl with 2 tablespoons of water, cover with a microwave‑safe lid or plastic wrap, and cook on high for 8–9 minutes until very tender. Drain thoroughly, transfer to a bowl, add cream, butter, salt, pepper, and garlic powder, and mash until creamy. Finish with additional butter or seasonings as desired.

Cauliflower Nutrition

Cauliflower is a cruciferous vegetable that’s low in carbs and rich in vitamins and fiber. Per 100g, cauliflower contains approximately 5 g total carbohydrates, 2 g fiber (about 3 g net carbs), and provides vitamin C and other micronutrients. This makes cauliflower an excellent base for low‑carb mashed “potatoes.”

When prepared with cream and butter, the mash increases in calories and fat, which can be desirable on higher‑fat low‑carb diets. Adjust amounts of cream and butter to fit your nutrition goals.

More Cauliflower Recipes

• Instant Pot Low Carb Cauliflower Soup with Bacon and Cheese
• Keto Chicken Bacon Ranch Casserole
• Instant Pot Steamed Cauliflower
• Instant Pot Cheesy Mashed Cauliflower
• Cilantro Lime Cauliflower Rice
• Keto Buffalo Cauliflower

More Low Carb Instant Pot Recipes

If you like cooking with an Instant Pot, try other low‑carb favorites such as beef ribs, pot roast, keto cheesecake, shredded chicken breasts, or brisket—many hearty mains pair perfectly with cauliflower mash.