The Ultimate Comfort Side Dish
There are mashed potatoes… and then there are these mashed potatoes. Once you’ve had a spoonful of creamy potatoes infused with nutty brown butter, garlic, and fresh rosemary, you’ll never want to go back. This recipe isn’t just a side dish—it’s the kind of food that steals the spotlight from the main course.
I’ve made countless versions of mashed potatoes over the years, but this is the one I keep coming back to. It’s rich, flavorful, and surprisingly simple to pull off. Whether you’re cooking for a holiday dinner, Sunday roast, or just want to level up a weeknight meal, these Garlic Brown Butter & Rosemary Mashed Potatoes are your ticket to potato bliss.
Trust me—no one makes mashed potatoes like this.
Why This Recipe Works
Most mashed potatoes rely on butter and milk alone. Here, we’re elevating things by:
- Browning the butter – which deepens the flavor, giving it a nutty, almost caramel-like richness. (Tip: use a light-colored skillet like this stainless steel skillet so you can see the butter change color clearly).
- Infusing with garlic and rosemary – instead of just tossing them in raw, we bloom them in the hot butter to pull out maximum aroma.
- Level-up options – a broiled golden top for a gratin-style finish, or crispy fried potato skins as garnish. (For this step, a cast-iron skillet or oven-safe baking dish works beautifully.)
These tricks make every bite unforgettable.
Ingredients You’ll Need
- Potatoes – Yukon Gold for creamy, buttery results, or Russet for fluffier texture.
- Butter – unsalted so you control the salt levels.
- Garlic & rosemary – fresh for best results.
- Milk & cream – warming them first makes the potatoes extra smooth.
- Salt & pepper – season in stages for depth.
- Olive oil – just enough for frying the skins if you go for the garnish.
💡 Pro tip: A potato ricer makes the creamiest mashed potatoes without lumps. If you like a more rustic texture, a sturdy masher works perfectly.
Step-by-Step Instructions
- Prep the potatoes – peel, chop, and boil with salted water until fork-tender. (I love using a large Dutch oven so the potatoes cook evenly.)
- Brown the butter – swirl it in a skillet until golden and nutty. Stir in garlic and rosemary for 30 seconds, then remove from heat.
- Mash – drain potatoes well and mash or rice them. Add warm milk and cream, then fold in the infused brown butter. Season to taste.
- Optional Level-Up #1 – spread into a buttered baking dish and broil until golden and crispy on top.
- Optional Level-Up #2 – fry reserved potato skins in olive oil until crisp. Sprinkle over the top before serving. (A simple splatter guard helps keep your stovetop mess-free here.)
Ingredient Tips & Substitutions
- Swap rosemary for thyme if you prefer a sweeter, earthy note.
- Add Parmesan cheese to the brown butter for a savory boost. (Grating it fresh with a microplane is a game-changer.)
- For a dairy-free option, replace butter with vegan butter and use almond milk + coconut cream.
Serving Suggestions
These mashed potatoes pair beautifully with:
- Roast chicken or turkey
- Steak or prime rib
- Beef Wellington
- Holiday spreads
Leftovers? Store in airtight glass containers in the fridge for up to 4 days. To reheat, add a splash of milk or cream to loosen them up. They also freeze surprisingly well—just thaw overnight in the fridge before reheating.
FAQs
1. Can I make these ahead?
Yes! Make them up to 2 days ahead, then reheat gently on the stove or in the oven.
2. Do I have to peel the potatoes?
Nope! You can leave the skins on for a rustic style. If you do peel, remember to save some skins for frying.
3. What’s the best potato for mashed potatoes?
Yukon Gold gives you buttery, rich results. Russet makes them fluffier. A mix of both is fantastic.
4. Can I double this recipe?
Absolutely. Just use a larger pot and a bit more milk/cream if needed.
5. How do I avoid gluey mashed potatoes?
Never overmix. Mash gently with a ricer or masher—avoid using a blender or food processor.
Final Thoughts
This recipe has become my go-to comfort food. Every bite has layers of flavor: nutty brown butter, fragrant rosemary, and velvety potatoes. It’s not just mashed potatoes—it’s an experience.
If you want to impress guests or just treat yourself, give this recipe a try. It may just become the star of your dinner table.
And don’t forget: no one makes mashed potatoes like this.
Try Next:
- Check out our Easy Pickled Cranberry recipe here.
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Garlic Brown Butter & Rosemary Mashed Potatoes
Equipment
- Large pot
- Potato masher or ricer
- Medium skillet
- Baking dish (optional, for broiling)
- Skillet (for frying skins, optional)
Ingredients
- 3 lbs Yukon Gold or Russet potatoes peeled, skins reserved
- 1 stick ½ cup unsalted butter
- 4 cloves garlic finely minced (or grated)
- 2 sprigs fresh rosemary about 2 tsp, finely chopped leaves
- ½ cup whole milk warm
- ½ cup heavy cream warm
- 2 teaspoon kosher salt divided, adjust to taste
- ½ teaspoon freshly ground black pepper
- Olive oil for frying potato skins
Instructions
Prep the potatoes:
- Peel and cut potatoes into even chunks, reserving some skins. Place in a pot, cover with cold water, and add 1 teaspoon salt. Bring to boil, reduce to simmer, and cook until fork-tender (15–20 min).
Make the brown butter infusion:
- In a skillet, melt butter over medium heat. Cook until golden brown and nutty (3–5 min). Stir in garlic and rosemary for 30 sec. Remove from heat.
Mash it up:
- Drain potatoes, return to pot to steam dry 1–2 min. Mash or rice, then stir in warm milk and cream. Add garlic-rosemary brown butter. Mix gently, season with salt and pepper.
Level-Up Option 1:
- Broiled Golden Top: Spread mashed potatoes in buttered baking dish, dot with butter, broil 3–4 min until golden.
Level-Up Option 2:
- Crispy Potato Skins: Slice reserved skins thinly, pat dry. Fry in olive oil until golden, drain on paper towels, salt, then scatter on top before serving.
Video
Notes
- Add Parmesan to brown butter for even more depth.
- Swap rosemary for thyme for a sweeter, earthy flavor.
- Can be made 1 day ahead—reheat gently with extra milk or cream.
Rufus Dewanou says
the colorful pantry