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Creamy Cheesy Garlic Mashed Potatoes Recipe

These cheesy garlic mashed potatoes are truly comforting and easy to make. Yukon Gold potatoes are whipped with sharp white cheddar, garlic, fresh rosemary, and plenty of melted butter for a rich, cozy side dish. They reheat well, so you can prepare them ahead of time and serve without stress.

I’m a big fan of potatoes in all forms — fries, chips, roasted, or smashed — and mashed potatoes are no exception. When done right they’re the best part of a meal; when done wrong they can be gummy, dry, or grainy. Over time I adopted a few techniques to ensure consistently smooth, creamy mashed potatoes, and this recipe reflects those simple, reliable steps.

The result is a deeply flavorful mash: sharp cheddar folded into warm potatoes with garlic and rosemary, rounded out by butter and a touch of crème fraîche or sour cream for creaminess. These are great for holiday dinners, weeknight sides, or whenever you want something indulgent and homey.

Yukon gold potatoes

White and brown bowls of white cheddar, potatoes, creme fraiche, cream, salt, melted butter, and garlic on a beige table next to rosemary and a tan linen.

For the creamiest texture, use Yukon Gold potatoes. They mash smoothly and have a naturally buttery flavor. If you prefer a firmer, more textured mash, Russets also work well.

You’ll need fresh garlic, sharp white cheddar (freshly grated for best texture), good-quality salted butter, crème fraîche or sour cream, warm half-and-half, finely minced rosemary, Kosher salt, and white or black pepper. Avoid pre-shredded cheese, which often contains anti-caking agents that can make the potatoes grainy.

Choose potatoes that are roughly the same size so they cook evenly and reach the same level of doneness.

Make this recipe

Three steps to ricing potatoes. In photo 1, potatoes are boiling in a silver pot on a beige counter. In photo 2, the potatoes are drained in a colander. In photo 3, the potatoes are being riced into a white bowl.
Boil the potatoes until fork tender. Drain and rice or mash while hot.
Three steps to making cheesy garlic mashed potatoes. In photo 1, a bowl of riced potatoes and cheddar is on a beige counter next to a wood bowl of salt, white bowl of rosemary, and beige linen. In photo 2, the potatoes have rosemary and creme fraiche in them. In photo 3, the potatoes are being mixed with half and half.
Fold in the garlic and cheddar, then add butter, crème fraîche, rosemary, warm half-and-half, salt, and pepper.

Avoid over-mixing. Stir the ingredients just until combined to keep the mash light and fluffy rather than dense or gummy.

Make-ahead & store leftovers

Prepare the potatoes as directed and let them cool slightly before transferring to an airtight container. Refrigerate for up to 4 days. Reheat using a gentle method to preserve creaminess.

If you need to keep the potatoes warm for several hours, a slow cooker set to WARM works well for 4–5 hours. Stir occasionally and add extra melted butter or a splash of half-and-half if they begin to dry out. For best texture after refrigerating overnight, reheat in the oven (instructions below).

A woman in a tan sweater holding a white bowl of cheesy garlic mashed potatoes on a wood table next to a beige linen, rosemary sprigs, and brown bowls of salt and white cheddar.

Reheat in the oven

Baking is the preferred reheating method because it warms the potatoes evenly without drying them out.

  1. Preheat oven to 350°F (177°C) and spoon the potatoes into a lightly greased baking dish.
  2. Add a splash of warmed half-and-half to restore moisture, then cover the dish.
  3. Bake 20–30 minutes, until the potatoes are hot and bubbling. Stir before serving if needed.

Microwave leftovers

For a quick reheat, microwave in a covered, microwave-safe bowl. Heat on high for 1 minute, stir, then continue in 1-minute intervals until hot. Add additional melted butter or half-and-half as needed to restore creaminess.

A white bowl of garlic cheesy mashed potatoes with a spoon on a wood background next to a beige linen, rosemary sprigs, a brown plate of cheese, and vintage forks.

If you make this recipe, please leave a rating and review — I read every comment and enjoy hearing how it turned out for you.

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Rating: 5 from 2 votes

Simple Cheesy Garlic Mashed Potatoes

Yield:
8 servings
Prep Time:
20
Cook Time:
20
Total Time:
40
These cheesy garlic mashed potatoes are rich and comforting: Yukon Gold potatoes whipped with sharp white cheddar, garlic, rosemary, butter, and a splash of half-and-half for a perfect, creamy side.

Ingredients

  • 3 pounds Yukon Gold potatoes (1.4 kilograms)
  • 1 Tablespoon minced garlic (about 2 large cloves)
  • 12 ounces white cheddar cheese, freshly grated (350 grams)
  • 1/2 cup salted butter, melted (113 grams)
  • 1/2 cup crème fraîche or sour cream (120 grams)
  • 1 1/2 Tablespoons rosemary, finely minced (about 2.5 grams)
  • 2/3 cup half-and-half, warmed (about 160 milliliters)
  • Kosher salt and white or black pepper to taste

Equipment

  • Potato ricer, masher, or hand/stand mixer
  • Cheese grater

Instructions

Boil the Potatoes

  • Peel the potatoes, wash well, and cut into uniform pieces: halves for small potatoes or quarters for large ones. Uniform pieces ensure even cooking.
  • Place the potatoes in a large pot and cover with at least 2 inches of cold water. Add several pinches of salt. Bring to a rolling boil over medium-high heat.
  • Boil for 18–20 minutes, until potatoes are fork tender. Avoid overcooking so they don’t absorb excess water. Drain and let them steam briefly in the colander with a plate over it; do not rinse.

Make the Mashed Potatoes

  • Rice or mash the warm potatoes with a ricer, masher, or mixer until smooth. Stir in the minced garlic right away so the residual heat softens its bite.
  • Fold in the grated white cheddar, a handful at a time, until melted and evenly incorporated. Add the melted butter, crème fraîche or sour cream, minced rosemary, 1/2 teaspoon kosher salt, and several dashes of white pepper.
  • Pour in 1/3 cup of the warmed half-and-half, then add more a splash at a time until you reach the desired consistency. Taste and adjust salt and pepper as needed.

To Reheat the Potatoes

  • For make-ahead storage, cool the potatoes to room temperature, transfer to an airtight container, and refrigerate up to 3–4 days.
  • Bake: Preheat oven to 350°F. Spoon potatoes into a lightly greased dish, stir in a splash or two of half-and-half, cover, and bake 20–30 minutes until hot and bubbly.
  • Microwave: Place in a microwave-safe bowl, heat on high for 1 minute, stir, and continue in 1-minute intervals until hot. Add more half-and-half or melted butter if needed.
  • Slow cooker: To hold for hours, transfer to a slow cooker set to WARM and stir occasionally, adding extra butter or half-and-half if they begin to dry out.

Notes

Use a potato ricer or a hand/stand mixer for the creamiest texture; traditional mashing works but requires more effort to reach the same result.

If you prefer a milder garlic flavor, sauté the garlic briefly in a tablespoon of butter before adding it to the potatoes.

Add the half-and-half gradually to control the final texture. Start with the amounts listed and increase if you like a looser mash.

Start with 1/2 teaspoon of kosher salt and adjust to taste; the final amount depends on the saltiness of your cheese and butter.

White pepper keeps the mash visually uniform, but black pepper works just as well flavor-wise.

Do not over-mix; stir just until everything is combined to maintain a light, fluffy texture.

Cuisine: American
Course: Side Dish
Author: Sara Lynn Hunt Broka
Serving: 1serving,
Calories: 381kcal,
Carbohydrates: 14.1g,
Protein: 13.2g,
Fat: 31.1g


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Originally posted November 16, 2021.