Potato Cauliflower Mash Pressure Cooker Recipe

Recipe Category: Vegetables


Potato Cauliflower Mash Pressure Cooker Recipe


SERVES 6 – Cooker: 5- to 7-quart – Time: 7 minutes at HIGH pressure

  • 1¾ pounds russet potatoes (2 very large or 3 medium), peeled and cut into 1½-inch chunks
  • 1 head cauliflower, cut into large florets
  • 2 tablespoons butter
  • ½ teaspoon salt, or to taste
  • 1/8 teaspoon freshly ground white pepper
  • ½ cup buttermilk, or as needed


  1. Place the potatoes in a 5- to 7-quart pressure cooker pot and fill with water to cover
  2. Top with the cauliflower
  3. It’s okay if the cauliflower isn’t covered all the way
  4. Close and lock the lid
  5. Set the burner heat to high
  6. When the cooker reaches HIGH pressure, reduce the burner heat as low as you can and still maintain HIGH pressure
  7. Set a timer to cook for 7 minutes
  8. Remove the pot from the heat
  9. Open the cooker with the Quick Release method
  10. Be careful of the steam as you remove the lid
  11. The potatoes should be soft and tender when pierced with the tip of a knife and still hold their shape
  12. Drain in a colander and remove to a deep bowl
  13. Add the butter, salt, and pepper
  14. Using a handheld electric mixer or stand mixer (use the paddle attachment), mix on low speed until the potatoes and cauliflower are smooth
  15. Add the buttermilk and incorporate it on low speed
  16. Whip the potatoes for about 2 minutes (for a stand mixer, change to the whisk attachment to do this)
  17. If the potatoes are too stiff for your taste, add more buttermilk 2 tablespoons at a time
  18. Taste and adjust the seasonings if desired
  19. Serve immediately

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