Brown Butter Garlic Mashed Potatoes

Name: Brown Butter Garlic Mashed Potatoes
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Yield: 6 servings
Cuisine: American
Ingredients: 2½ lb (1135 g) russet potatoes, peeled, cut into 1½-inch (4 cm) chunks; 5 tablespoon (71 g) unsalted butter, cold, cut into cubes; 6 clove (30 g) garlic cloves, unpeeled, separated but skins left on; 2 teaspoon (12 g) kosher salt; ½ cup (120 ml) whole milk, at room temperature, warmed slightly (70–75°F / 21–24°C); to taste freshly ground black pepper

From the MyKitchenBank Kitchen

Creamy mashed potatoes enriched with nutty brown butter and roasted garlic, finished with a whisper of milk and fresh black pepper. The brown butter adds deep, toasted notes while the garlic becomes sweet and mellow after cooking, making these potatoes a luxurious side that complements roasted meats, braises, and holidays meals.

Prep: 15 min
Cook: 25 min
Wait: 5 min
Total: 45 min
Makes: 6 servings (about 4 cups / 950 ml)

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Steps

Before you start

Peel potatoes and cut into 1½-inch chunks so they cook evenly
Separate garlic cloves but leave skins on for roasting
Have a colander ready by the stove
Gather all ingredients before you begin—timing matters with the brown butter

1
Boil potatoes and garlic
- Add the potato chunks and unpeeled garlic cloves to a large pot.
- Cover with cold water by 2 inches (5 cm) and add 1½ teaspoons (9 g) of the kosher salt.
- Bring to a boil over high heat, then reduce to a medium boil.
- Cook for 12–15 minutes, until a fork easily pierces the potatoes all the way through with no resistance at the center.
- The potatoes should break apart if poked hard.
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Ready when: Fork pierces potatoes with zero resistance; garlic cloves feel soft inside their skins
Tip: Do not boil hard—a rolling boil breaks potatoes apart before they're fully tender, making them waterlogged.
2
Drain potatoes and garlic
- Place a colander in the sink and carefully pour the potatoes and garlic into it.
- Let them drain for 1 minute, shaking gently to remove excess water.
- Do not rinse—starch helps create creaminess.
- Return the drained potatoes and garlic to the now-empty pot.
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Ready when: Potatoes and garlic sit in dry pot with no standing water
Tip: Leaving the pot on the burner (off heat) helps residual steam evaporate and dries the potatoes further, making them fluffier.
3
Brown the butter
- While potatoes drain, place a medium saucepan over medium heat.
- Add the 5 tablespoons (71 g) of cold butter cubes.
- Swirl the pan gently (without stirring vigorously) for 5–7 minutes as the butter melts, foams, and the milk solids sink to the bottom and turn golden brown.
- You'll notice a nutty aroma.
- Pour the brown butter into a small bowl, leaving most of the browned solids at the bottom of the pan—these can burn if reheated.
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Ready when: Butter solids are golden brown and smell nutty; liquid butter is amber-colored
Tip: Do not walk away—butter burns quickly from golden to black. If it smells burnt (acrid, not nutty), discard and start over.
4
Peel roasted garlic
- Once the potatoes and garlic are cool enough to handle (about 2 minutes), squeeze each garlic clove at its base to pop the soft, cooked garlic out of its skin.
- Discard the skins.
- Roughly chop or leave the garlic cloves whole—they'll mash into the potatoes.
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Ready when: Garlic separates easily from skin and is completely soft
Tip: Let the potatoes cool 2–3 minutes or they'll be so hot you risk burns. A folded kitchen towel helps you grip the hot garlic cloves.
5
Rice or mash the potatoes
- Working in batches if needed, pass the warm potatoes (and garlic) through a potato ricer into a large mixing bowl.
- If you don't have a ricer, use a traditional masher, pressing firmly and working over the bowl until no large lumps remain.
- Ricing yields the fluffiest, creamiest result; a masher is faster but may leave small lumps.
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Ready when: All potatoes are broken down to a smooth or lump-free consistency; garlic is evenly distributed
Tip: Do not overwork the potatoes after mashing—stirring too much releases starch and makes them gluey. Aim for creamy, not gummy.
6
Combine potatoes with brown butter and milk
- Pour the warm brown butter (with a bit of the golden solids) into the mashed potatoes.
- Add the remaining ½ teaspoon (3 g) of kosher salt.
- Gently fold the butter in with a wooden spoon, using broad strokes and rotating the bowl, until the butter is fully incorporated and the potatoes look creamy and shiny.
- Warm the milk slightly (70–75°F / 21–24°C), then add it in two additions, folding gently after each addition.
- Stop when the potatoes reach your desired consistency—silky and spreadable.
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Ready when: Potatoes are creamy, glossy, and hold a gentle shape on a spoon without being dry or stiff
Tip: Fold, don't stir vigorously. Overworking releases starch and makes the potatoes pasty. Warm milk incorporates more smoothly than cold milk.
7
Season to taste and serve
- Taste the potatoes and adjust seasoning with a pinch more salt if needed.
- Finish with a generous grind of fresh black pepper.
- Transfer to a warm serving bowl or platter.
- Serve immediately while hot and creamy.
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Ready when: Seasoning is balanced—savory, nutty, and well-salted
Tip: Black pepper adds peppery bite that brightens the rich brown butter. Add it just before serving so it stays fresh and visible.

Good to know

Tips

For the smoothest texture, use a ricer. If you don't own one, a food mill or fine-mesh sieve works, though it's slower. A hand masher is the fastest but yields a slightly chunkier result.
The warm milk tip: cold milk will cool the potatoes and slow incorporation. Warming milk to about 70°F (21°C)—about room temperature or slightly warmer—makes it fold in seamlessly.
Brown butter can break if overheated or if the milk solids are stirred back in too vigorously. If the butter looks separated after folding, whisk in a tablespoon of warm milk to emulsify it back together.
Don't peel the potatoes until just before cooking. Peeled potatoes sitting in water become waterlogged and absorb too much liquid, resulting in watery mashed potatoes.

Make ahead

Brown the butter up to 2 hours ahead; keep it at room temperature and gently reheat it just before folding into warm mashed potatoes. Potatoes are best served fresh, but can be made up to 4 hours ahead, held in a warm bowl covered with foil, and given a gentle stir with a splash of warm milk before serving.

Storage & reheating

Room temperature: up to 2 hours (loosely covered). Refrigerator: up to 3 days in an airtight container. Reheat in a microwave (stirring every 30 seconds) or on the stovetop over medium-low heat with a splash of milk. Freezer: up to 2 months. Thaw overnight in the fridge and reheat as above. Note: Frozen potatoes may be slightly less creamy due to ice crystal formation; add extra milk when reheating.

Substitutions

whole milk, at room temperature → Heavy cream (use half the amount, about ¼ cup / 60 ml) or sour cream mixed with milk (¼ cup / 60 ml each). Heavy cream makes the potatoes richer and more decadent. Sour cream adds tang. Both reduce the milk amount to avoid over-moistening.
russet potatoes, peeled → Yukon Gold potatoes (same weight). Yukon Golds have more natural butter flavor and create a golden color. Cook time is the same. They yield slightly waxy potatoes, which some prefer for a smoother texture.
unsalted butter, cold → Ghee or clarified butter (same amount). Ghee is already browned, so skip the browning step and simply warm it. The nuttiness will be already developed. Use the same amount.
garlic cloves, unpeeled → 2 teaspoons (6 g) of roasted garlic paste or garlic powder to taste. If you don't have fresh garlic or want to skip roasting, garlic powder delivers quicker results, but fresh roasted garlic has superior sweetness. Start with ¼ teaspoon garlic powder and add more to taste.