Follow these step-by-step instructions to create the most decadent and flavorful Garlic Parmesan Mashed Potatoes you’ve ever tasted. Each step is designed to build layers of flavor and ensure the perfect creamy texture.

1. Preheat Oven and Prepare Garlic: Preheat your oven to 400°F (200°C). Take your garlic cloves and leave the skins on. Place them on a small piece of aluminum foil, drizzle with 1 tablespoon of olive oil, and wrap the foil tightly to create a sealed packet. Roasting the garlic in foil will steam and soften it, mellowing its harshness and bringing out its natural sweetness.
2. Roast the Garlic: Place the foil packet of garlic in the preheated oven and roast for 30-40 minutes, or until the cloves are soft and fragrant. You’ll know they are ready when they are easily pierced with a fork and have a slightly caramelized appearance. Remove from the oven and let the garlic cool slightly.
3. Prepare the Potatoes: While the garlic is roasting, peel your potatoes and cut them into roughly 1-2 inch chunks. Uniform size ensures even cooking. Place the potato chunks in a large pot and cover them with cold water. Add a generous pinch of salt to the water. Starting with cold water helps the potatoes cook evenly from the inside out.
4. Boil the Potatoes: Bring the pot of potatoes to a boil over high heat. Once boiling, reduce the heat to medium and simmer gently for 15-20 minutes, or until the potatoes are fork-tender. They should be easily pierced with a fork and fall apart slightly when poked. Avoid overcooking them, as they can become waterlogged.
5. Drain the Potatoes: Once the potatoes are cooked, drain them thoroughly in a colander. Return the drained potatoes to the empty pot. This step is crucial to remove excess water and prevent watery mashed potatoes.
6. Squeeze Roasted Garlic: While the potatoes are still hot, take the cooled roasted garlic cloves and squeeze the softened garlic pulp out of their skins directly into the pot with the potatoes. Discard the skins. Roasted garlic is incredibly soft and will easily mash right into the potatoes.
7. Mash the Potatoes: Using a potato ricer or a potato masher, mash the potatoes and roasted garlic until smooth. A ricer will create the fluffiest, lump-free mashed potatoes, but a regular masher works well too. Avoid over-mashing, as this can release too much starch and make the potatoes gummy.
8. Warm Cream, Milk, and Butter: In a separate small saucepan, combine the heavy cream, milk, and butter. Heat over low heat until the butter is melted and the mixture is warmed through but not boiling. Warming the dairy before adding it to the potatoes helps them absorb it better and prevents the potatoes from cooling down too quickly.
9. Incorporate Dairy Mixture: Gradually pour the warm cream mixture into the mashed potatoes, mixing gently with a spatula or wooden spoon until smooth and creamy. Add the liquid in stages to control the consistency and avoid making the potatoes too thin.
10. Stir in Parmesan and Parsley: Stir in the grated Parmesan cheese and chopped fresh parsley. Mix until the parmesan is melted and evenly distributed throughout the mashed potatoes. The heat from the potatoes will melt the parmesan beautifully.
11. Season to Taste: Season the Garlic Parmesan Mashed Potatoes with salt and freshly ground black pepper to taste. Start with a pinch of each and adjust according to your preference. Remember that parmesan cheese is already salty, so taste before adding too much salt.
12. Serve Immediately: Serve your Garlic Parmesan Mashed Potatoes immediately while they are hot and creamy. Garnish with an extra sprinkle of fresh parsley and parmesan cheese, if desired. They are best enjoyed fresh but can be kept warm for a short period in a slow cooker or warming drawer.