Start by preparing the potatoes. Peel the potatoes and cut into large, relatively even chunks. Place the potatoes in a large saucepan or Dutch oven and cover them by about 1 inch in water. Add 1 teaspoon of salt and stir.
3 pounds Yukon Gold potatoes, 1½ teaspoons sea salt
Bring to a boil and cook until the potatoes are fork-tender. They should be soft all the way through. This will take about 15-20 minutes but can vary based on the size of your potato pieces.
Reserve about 2 cups of the potato cooking water in a liquid measuring cup, and then drain the potatoes well.
Once the vegan butter is softened, place it in a small bowl and add the garlic and miso paste. Using a fork or small whisk, mix them together until well combined.
6 tablespoons vegan butter, 1 tablespoons white miso paste, 1 head roasted garlic
Return the potatoes to the pan and cook for a few minutes over low heat to cook off any excess moisture. Run through a potato ricer if you’re ricing the potatoes, or using a potato masher to mash well. Stir in the butter mixture until melted and incorporated. Slowly add the reserved cooking water, mashing, and folding as you add, until you reach your desired consistency.
Taste for seasoning and add salt and freshly cracked black pepper to taste.
Freshly cracked black pepper
Garnish with fresh chives and more vegan butter before serving warm.
Chopped fresh chives