Roasted Garlic Mashed Potatoes

When a fork slides easily through a potato chunk, the potatoes are ready to drain—but cold butter and milk can cool them before they turn creamy. I warm the dairy while the potatoes simmer, then pour it in gradually as I mash. In these roasted garlic mashed potatoes, the garlic softens until golden and blends right into the potatoes instead of leaving sharp little bites.

Yukon Golds give the mash a naturally creamy texture, and cutting them into even chunks helps them become tender at about the same time. I start the potatoes in cold, salted water, then simmer them until a fork slips through without resistance. After draining, they go back into the warm pot to be mashed with the roasted cloves and butter mixture. The finished potatoes are rich and soft, with mellow garlic in every spoonful.

Why Starting Yukon Golds in Cold Water Matters More Than Mashing Hard

Potatoes need time to heat through, not just a quick blast of boiling water. Starting the chunks in cold water lets the outside and center warm together as the pot comes up to a boil. That helps the pieces cook evenly, so you’re less likely to have soft, breaking edges around a firm center. Keep the chunks close to the same size, too; uneven pieces won’t become fork-tender at the same time.

Yukon Golds are a good fit for this approach because they mash into a creamy, substantial texture without needing a lot of extra liquid. They’re different from a fluffier, drier potato, so resist the urge to keep working the mash once it looks smooth. Vigorous or prolonged mashing can make potatoes gluey as their starch is worked. Stop when the garlic and warm butter mixture are incorporated and the potatoes look creamy, rather than chasing a perfectly whipped texture.

What Yukon Golds, Roasted Garlic, and Warm Dairy Bring to the Mash

• Yukon Gold potatoes — Their creamy texture suits a mash that’s rich but still holds its shape on a spoon. Russet potatoes are a workable substitute, though the result will be lighter and fluffier; handle them gently as you mash.
• Roasted garlic — Slow roasting turns the cloves soft and mellow, which is what gives this dish its rounded garlic flavor. Fresh raw garlic won’t produce the same result. Choose a firm head, and use olive oil to coat the exposed cut surface before roasting.
• Unsalted butter — It adds richness while leaving the final seasoning in your hands. A standard store-brand butter works well here; there’s no need to seek out a specialty butter for the garlic to come through.
• Whole milk — It loosens the mash while keeping it creamy. Lower-fat milk can work, but the potatoes will be a little less rich. If you need a dairy-free version, use the plant-based swap in the variations below.

From Golden Garlic to Creamy Potatoes: The Cues to Watch

Roast the Cloves Until Soft and Golden

Heat the oven to 400°F. Slice about 1/4 inch off the top of the garlic head to expose the cloves, drizzle the cut surface with olive oil, and wrap the head tightly in foil. Set it on a small rimmed baking sheet and roast for 40 to 50 minutes. The cloves should be very soft and golden; let the head cool until it’s handleable, then squeeze the cloves from their skins.

Simmer the Potato Chunks Until a Fork Slides In

Put the peeled, cut potatoes in a 6-quart pot with the cold water and the cooking-water salt. Bring the pot to a boil over high heat, then reduce the heat and simmer for 15 to 20 minutes. Check a chunk with a fork: it should pass through easily, without the potato falling apart in the water. If the center still feels firm, give the potatoes more time at a gentle simmer.

Warm the Butter and Milk While the Potatoes Cook

In a small saucepan, warm the butter and milk over low heat for 2 to 3 minutes while the potatoes simmer. Look for melted butter and milk that’s steaming, then take the pan off the heat. Keeping this mixture warm means it blends into the potatoes without cooling the mash as you work. Have it ready before you drain the potatoes.

Mash Gradually, Then Season at the End

Drain the potatoes thoroughly and return them to the warm pot. Add the roasted garlic and mash, gradually pouring in the warm butter mixture until the potatoes look creamy. Add the remaining kosher salt and black pepper, and stir them through. Serve while the potatoes are warm.

Two Ways to Change the Garlic or Make the Mash Dairy-Free

Questions That Come Up While the Potatoes Cook

Roasted Garlic Mashed Potatoes

Roasted garlic mashed potatoes combine Yukon Gold potatoes with soft, golden roasted garlic, butter, and warm milk for a creamy side dish. Simmer the potatoes until fork-tender, then mash them with the warm butter mixture.

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 1 hour hr 5 minutes mins

Total Time 1 hour hr 20 minutes mins

Servings: 8 servings

Course: Side Dish

Cuisine: American

Calories: 260

Ingredients Equipment Method Notes

Ingredients

  

For the roasted garlic

• 1 garlic large head
• 1 tsp olive oil

For the mashed potatoes

• 3 lb Yukon Gold potatoes peeled and cut into 1 1/2-inch chunks
• 3 qt cold water
• 1 tbsp kosher salt for the cooking water
• 6 tbsp unsalted butter
• 0.75 cup whole milk
• 1 tsp kosher salt
• 0.25 tsp black pepper

Equipment

• 1 small rimmed baking sheet

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 cut surface with olive oil.
4. Wrap the head tightly in foil.
5. Place it on a small rimmed baking sheet.
6. Roast for 40 to 50 minutes, until the cloves are very soft and golden.
7. Let the garlic cool until handleable.
8. Squeeze the cloves from their skins.

Make the mashed potatoes

1. Put the potatoes in a 6-quart pot.
2. Add the cold water and 1 tablespoon kosher salt.
3. Bring to a boil over high heat.
4. Reduce the heat and simmer for 15 to 20 minutes, until the potatoes are fork-tender.
5. While the potatoes cook, warm the butter and milk in a small saucepan over low heat for 2 to 3 minutes, until the butter melts and the milk is steaming; do not let it boil.
6. Drain the potatoes thoroughly and return them to the warm pot.
7. Add the roasted garlic and mash, gradually adding the warm butter mixture, until the potatoes are creamy.
8. Stir in 1 teaspoon kosher salt and the black pepper.
9. Serve.

Notes

For the creamiest texture, add the warm butter mixture gradually as you mash. Refrigerate leftovers for up to 4 days; freezing is possible, though the texture may soften. For a dairy-free variation, use plant-based butter and unsweetened oat milk.