Creamy roasted garlic mashed potatoes made with russet potatoes, butter, heavy cream, and Parmesan. Rich, comforting, and reliably delicious, this mashed potato recipe is perfect for holiday dinners or any night you want a warm, satisfying side dish. The key differences that make these stand out are roasting the garlic for mellow sweetness and warming the dairy before folding it into the potatoes for a silky finish.
Author’s Note
Mashed potatoes are the ultimate comfort food for me, and they deserve attention. I don’t skip the butter or shortcut the garlic — roasting a whole head brings out a soft, sweet garlic flavor that transforms ordinary potatoes into something special. Warm the cream before you add it and mash gently to keep the texture light and fluffy.
After making these for holidays and everyday dinners, roasting the garlic and using plenty of butter became my trusted way to make mashed potatoes that people ask for again and again.
– Silvia
Ingredient Notes
- Russet potatoes – These are ideal for light, fluffy mashed potatoes. They’re starchy, break down well, and absorb butter and cream beautifully. Yukon Golds are an acceptable substitute but yield a denser, creamier texture.
- Garlic (roasted) – Roasting a whole head mellows the sharpness and gives a buttery, sweet garlic flavor. Squeeze the softened cloves into the potatoes for even, subtle garlic notes.
- Butter – Use a full stick for richness and silky mouthfeel. Unsalted butter is recommended so you can control the final seasoning.
- Heavy cream – Warm cream creates the creamiest result. If you prefer a lighter option, use half-and-half, but you may lose some of the luxurious texture.
- Parmesan cheese – Freshly grated Parmesan adds savory depth and a pleasant finish; it also contributes salt, so taste before adding extra.
- Chives – A small sprinkle of fresh chives brightens and balances the richness.
- Salt & pepper – Season at several stages: the cooking water, the melted butter, and the final mash. Potatoes generally require more salt than you might expect, so taste and adjust as you go.
My best tips for the creamiest mashed potatoes
Start with cold water. Place the potato chunks in cold, salted water and then bring them to a simmer. This helps them cook evenly without becoming gummy on the outside.
Don’t overcook the potatoes. Cook until fork-tender but not falling apart; overcooked potatoes absorb extra water and can become gluey.
Warm your dairy. Heating the butter and cream slightly before adding keeps everything smooth and prevents the potatoes from cooling too quickly.
Mash gently. Use a potato masher or ricer and avoid electric mixers. Overworking the potatoes releases excess starch and makes them gummy.
Add butter first, then cream. Butter coats potato starches and helps prevent gumminess. Add cream slowly until you reach the texture you want.
Taste and season as you go. Potatoes need more salt than you might expect. Adjust after each addition, keeping in mind Parmesan adds salt too.
3 common mistakes to avoid when making mashed potatoes
- Using the wrong potatoes. Waxy potatoes like reds don’t break down the same way and can produce a gluey texture. Stick with russets or Yukon Gold for best results.
- Not draining well enough. After boiling, let the potatoes steam briefly in a colander so surface moisture evaporates. Excess water dilutes flavor and thins the final texture.
- Under-seasoning. Potatoes need ample salt and flavorful additions like roasted garlic, butter, and Parmesan. Taste frequently and adjust seasoning in stages.
Tools used: I use a classic potato masher for this recipe, but if you prefer an ultra-smooth texture, a potato ricer is an excellent option.
Must-have side dishes for your holiday table
Healthy Sweet Potato Casserole with Pecan Topping
Easy Green Bean Casserole (Gluten-Free)
Garlic Butter Mushrooms
Broccoli Casserole with Crispy Onions
Roasted Brussels Sprouts with Crispy Onions and Bacon
Mashed Potatoes Recipe
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Ingredients
- 3 lbs russet potatoes, peeled and cut into chunks
- 1 head garlic, roasted
- 1 stick butter
- 1/2 cup heavy cream, warmed
- 1/2 cup Parmesan cheese, freshly grated
- 1 tbsp fresh chives, chopped
- Salt and pepper, to taste
Instructions
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Preheat the oven and prepare the garlic: Trim about 1/4″ off the top of the garlic head to expose the tops of the cloves. Drizzle with olive oil, wrap the head in foil, and roast until very soft, about 1 hour. When cool, squeeze the roasted cloves from their skins.
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Prepare the potatoes: Rinse, peel, and rinse again under cold running water. Put the potato chunks into a large pot, add a generous pinch of salt, and cover with cold water. Bring to a boil, then lower the heat and simmer until potatoes are fork-tender, about 30 minutes depending on size.
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Drain and steam: Drain the potatoes well in a colander and let them sit for a minute to steam off excess moisture. Return the potatoes to the pot over low heat for a minute to dry briefly, if needed.
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Mash and incorporate fats: In the same pot, melt the butter over low heat. Add the potatoes and begin mashing with a potato masher until mostly smooth with a few small lumps for texture. Add the roasted garlic cloves, mashing them into the potatoes to distribute flavor.
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Add cream and cheese: Gradually pour in the warmed heavy cream, stirring to reach your desired consistency. Stir in the grated Parmesan, then taste and season with salt and pepper. Adjust butter or cream as needed for silkiness.
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Serve: Transfer the mashed potatoes to a warm serving bowl and top with a drizzle of melted butter, a sprinkle of fresh chives, and extra Parmesan if you like. Serve immediately for the best texture.
Notes
Storage Instructions:
- Refrigerate: Cool completely, then store in an airtight container for up to 4 days.
- Freeze: Place in a freezer-safe container or bag and freeze for up to 2 months. Press out air to reduce ice crystals.
- Thaw: Thaw overnight in the refrigerator for best texture.
Reheating Instructions
On the stovetop (recommended)
- Warm mashed potatoes over low heat in a saucepan, stirring frequently.
- Add a splash of cream, milk, or broth as needed to loosen and revive the texture.
- Finish with a pat of butter for extra silkiness.
In the microwave (quick)
- Microwave in 1-minute intervals, stirring between each session.
- Add cream or butter as needed to restore creaminess.
Reheating tip: Mashed potatoes thicken as they chill, so plan to add a little extra liquid when warming to bring back a fresh, silky texture.
Nutrition
Nutrition information is automatically calculated and should be used as an approximation.
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