Roasted Garlic Mashed Potatoes

The garlic comes out of the oven soft enough to squeeze from its papery skins, and the kitchen smells warm and savory before the potatoes are even on the stove.…

By Julia • October 14, 2026 • Reading time: 8 min

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The garlic comes out of the oven soft enough to squeeze from its papery skins, and the kitchen smells warm and savory before the potatoes are even on the stove. Roasting takes a little time, but it turns one head of garlic mellow and sweet instead of sharp. That’s what makes these roasted garlic mashed potatoes taste special without needing a long list of add-ins.

I use Yukon Gold potatoes for their naturally buttery texture, then mash them only until mostly smooth. Warm butter and cream blend in easily, while the roasted cloves spread through the potatoes without the harsh bite raw garlic can bring. The result is rich, creamy mashed potatoes with a gentle garlic flavor in every serving.

Why Yukon Golds Stay Creamy Without Turning Gluey

Mashed potatoes get gluey when their starch is worked too hard. Once cooked potatoes are mashed, every extra pass breaks down more cells and releases more starch; vigorous mixing can turn a soft mash into a stretchy, pasty one. I stop when the potatoes are mostly smooth, then fold in the warm garlic and butter-cream mixture just until it’s incorporated.

Yukon Golds help here because they’re naturally creamy and don’t need to be beaten into submission to feel smooth. A few small lumps are fine, and they’re preferable to chasing a perfectly uniform texture with a mixer. The potatoes should hold together on a spoon and still look soft, not elastic or shiny. If you like a completely smooth finish, use a potato ricer before adding the warm mixture rather than processing the finished mash for longer.

What the Garlic, Potatoes, and Dairy Each Bring to the Pot

• Garlic — Choose a firm head without soft or shriveled cloves. Roasting softens its bite and gives the potatoes a rounded garlic taste; raw garlic won’t give the same mellow result. Olive oil coats the exposed cloves as they roast, so there’s no need for an expensive bottle here.
• Yukon Gold potatoes — Their creamy, buttery texture suits a mash that’s smooth but not whipped. If you have russets instead, use the same weight; they’ll make a fluffier, starchier mash, so handle them gently.
• Unsalted butter — It adds richness without bringing extra salt that could make the final seasoning harder to control. A standard grocery-store butter works well; the main thing is warming it with the cream so it blends into the potatoes easily.
• Heavy cream — Cream gives the mash a fuller, silkier feel than a thinner milk. Whole milk can stand in at the same amount if that’s what you have, though the potatoes will be a little less rich. Warm it with the butter rather than pouring it in cold.

Roast the Garlic, Simmer the Potatoes, Then Mash Gently

Roasting the Cloves Until Soft and Golden

Heat the oven to 400°F, then slice about 1/4 inch from the top of the garlic head so the cloves are exposed. Drizzle them with olive oil and wrap the head in foil before it goes into the oven. Roast for 40 to 50 minutes, until the cloves are very soft and lightly golden; if they’re still firm, give them more time rather than rushing them into the potatoes. Squeeze the cooled cloves from their skins into a small bowl.

Cooking the Potatoes Evenly

Put the peeled, 1 1/2-inch potato chunks in a 6-quart pot with the cold water and 1 tablespoon of kosher salt. Bring the pot to a boil over high heat, then lower the heat and simmer for 15 to 20 minutes. Check a larger chunk with a fork: it should pierce easily all the way through, with no firm center. If some pieces are still resistant, keep simmering and check again instead of draining them early.

Adding the Warm Butter and Cream

While the potatoes simmer, warm the butter and heavy cream together in a small saucepan over low heat until the butter melts. Don’t let the mixture boil; a gentle warming is all it needs. Drain the tender potatoes and return them to the pot, then mash until mostly smooth. Mix in the roasted garlic and warm butter-cream mixture, followed by the remaining 1 teaspoon of kosher salt and the black pepper, and serve.

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Questions That Come Up While Making These Potatoes

Roasted Garlic Mashed Potatoes

Roasted garlic mashed potatoes combine Yukon Golds with soft, lightly golden roasted garlic for a creamy, mostly smooth side dish. The potatoes simmer until fork-tender, then get mashed with warm butter and cream.

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Prep Time 15 minutes mins

Cook Time 50 minutes mins

Total Time 1 hour hr 5 minutes mins

Servings: 8 servings

Course: Side Dish

Cuisine: American

Calories: 335

Ingredients Method Notes

Ingredients

  

For the roasted garlic

• 1 garlic large head
• 1 tbsp olive oil

For the potatoes

• 3 lb Yukon Gold potatoes peeled and cut into 1 1/2-inch chunks
• 3 qt cold water
• 1 tbsp kosher salt divided
• 1 tsp kosher salt remaining, divided
• 8 tbsp unsalted butter
• 0.5 cup heavy cream
• 0.25 tsp black pepper

Method

 

Roast the garlic

1. Heat the oven to 400°F.
2. Slice about 1/4 inch off the top of the garlic head to expose the cloves.
3. Drizzle the garlic with olive oil and wrap it in foil.
4. Roast the garlic for 40 to 50 minutes, until the cloves are very soft and lightly golden.
5. Let it cool until easy to handle.
6. Squeeze the cloves from their skins into a small bowl.

Cook the potatoes

1. Put the potatoes, cold water, and 1 tablespoon of the kosher salt in a 6-quart pot.
2. Bring to a boil over high heat, then reduce the heat and simmer for 15 to 20 minutes, until the potatoes are fork-tender.
3. While the potatoes cook, warm the butter and heavy cream in a small saucepan over low heat until the butter melts; do not let the mixture boil.

Mash the potatoes

1. Drain the potatoes and return them to the pot.
2. Mash until mostly smooth.
3. Mix in the roasted garlic and warm butter-cream mixture.
4. Stir in the remaining 1 teaspoon kosher salt and the black pepper, then serve.

Notes

For the smoothest texture, mash the potatoes while hot and mix in the warmed butter and cream. Refrigerate leftovers in an airtight container for 3–4 days; freezing is not recommended because the texture may change. For a dairy-free version, use plant-based butter and unsweetened non-dairy cream.