Ingredients Original recipe yields 4 servings Ingredient Checklist 5 large potatoes, scrubbed and cubed ¼ cup minced onion ¾ cup butter ½ cup buttermilk 1 tablespoon garlic powder salt and ground black pepper to taste Directions Instructions Checklist Step 1 Place potatoes and onion into a large pot and cover with water; bring to a boil. Reduce heat to medium-low and simmer until tender, about 20 minutes. Drain. Step 2 Transfer cooked potatoes and onion to a large bowl. Add butter, buttermilk, garlic powder, salt, and black pepper; blend together until creamy, 1 to 2 minutes