One of my all-time favorite Thanksgiving side dishes is Roasted Garlic Autumn Root Vegetable Mash. Why? ’Cause it’s a feast for both the eyes and tastebuds. My original stovetop version is crazy delicious, but now that I’m a certified Instant Pothead, I was determined to create a shortcut to veggie mash nirvana using my Instant Pot. After some tinkering, I’ve come up with a simpler way to make my Autumn Mash in an electric pressure cooker!
Start by roasting a head of garlic. Elise Bauer’s recipe is my favorite for its simplicity and consistently perfect results, though I modify it slightly by cooking the garlic in a covered mini cocotte with whatever cooking fat I have on hand (e.g. melted ghee, avocado oil, etc.). Rushed for time? “Roast” the garlic in an Instant Pot by following this recipe!
When you’re ready to cook the mash, press the “Sauté” button on your Instant Pot and when the metal insert is hot, add three tablespoons of ghee. Toss in the onions and cook until softened, about 2-3 minutes.
Add the chopped parsnips, carrots, and cauliflower into the pot, and squeeze in the roasted garlic bulbs. Sprinkle on some salt.
Pour the broth into the metal insert, and give everything a good stir. Cancel the “Sauté” function.
Lock on the lid of the Instant Pot with the valve in the sealed position and program it to cook under high pressure for 5 minutes.
When the Instant Pot beeps to let you know your veggies are done cooking, release the pressure manually.
Season to taste with salt and pepper, and stir in the remaining tablespoon of ghee. Purée the mixture with an immersion blender or blitz in a food processor until smooth.
Finally, plate it up, top with fresh chives and serve!
I know you might be tempted to skip the garlic, but the roasted garlic adds a mellow, sweeter flavor that is essential to this dish. You can roast the garlic ahead of time and keep it in the fridge for about a week. (Make an extra one so you can squeeze the roasted garlic into other dishes throughout the week!)