Brown butter mashed potatoes are a decadent garlic-infused side dish topped with fried sage. Each creamy, savory spoonful combines velvety smoothness with the aromatic, nutty warmth of browned butter and crisp sage leaves.
For more delicious mashed potato recipes, try my Classic Mashed Potatoes recipe and these Boursin Mashed Potatoes next.
This content contains affiliate links which helps WhisperofYum.com to provide free recipes. As an Amazon Associate, I earn from qualifying purchases. Thank you for support of the blog, Whisper of Yum!
There’s something so comforting about garlic mashed potatoes. It brings everyone back for seconds. It’s rich with deep, savory notes thanks to the garlic-infused cream. And with a whole head of garlic adding depth, these potatoes are anything but ordinary.
And instead of a traditional gravy, I decided to go with a rich brown butter sage sauce, which adds a warm, nutty flavor and a crisp bite from the fried sage. It’s the kind of dish that makes family dinners feel special, whether it’s a holiday or just a cozy evening at home.
Why This Recipe Works
- Bold Flavors – The garlic-infused cream and brown butter sage sauce create a rich, aromatic profile that elevates classic mashed potatoes.
- Perfect Texture – Yukon Gold potatoes provide a naturally creamy base, resulting in a smooth and luxurious mash.
- Simple Elegance – The addition of brown butter and sage gives this dish a sophisticated touch with minimal effort.
Tools You’ll Need
Ingredients You Will Need for Brown Butter Mashed Potatoes
Here is a breakdown of what you will need to make this recipe. For actual measurements, see the recipe card at the end of this post.
Potatoes
- Organic yukon gold potatoes – These are my go-to for mashed potatoes because they have a natural buttery flavor and creamy texture. Make sure the potatoes are similar in size when cut into 1½-inch cubes. This ensures even cooking and helps you avoid lumpy or undercooked bits.
- Dairy – Whole milk and heavy cream are combined to create the perfect balance of richness and creaminess. Pro tip: warm the dairy mixture before adding it to the potatoes for a smoother blend.
- Whole black peppercorns – These are simmered with the milk and cream to infuse subtle peppery notes throughout. They won’t overpower the garlic but add a nice depth that complements the overall flavor.
- Garlic – A large head of garlic with the top ¼ removed is essential for this recipe. Simmering the garlic with the milk and cream lets its flavor infuse gently. We end up with a rich, mellow garlic undertone rather than a sharp bite. Don’t skip this step if you want truly infused potatoes.
- Salted butter – Add melted butter in stages to ensure that it blends smoothly and adds a glossy finish. This also helps the potatoes become evenly flavored without separating.
- Kosher salt – I use Diamond Crystal brand because its flake size makes it easier to control the seasoning. Start with the recommended amount, but always taste and adjust as needed—mashed potatoes thrive on a generous amount of salt.
Sage Brown Butter
- Fresh sage leaves – These are fried in the browned butter to add an earthy, herbaceous element and a crispy texture. It’s important to add them at just the right moment when the butter turns a honey-brown color and releases a nutty aroma.
- Salted butter – As it browns, it develops a deep, nutty flavor that transforms the mashed potatoes from simple to indulgent. Keep stirring while it browns to prevent burning and achieve a consistent golden color.
- Kosher salt – Just a pinch to taste enhances the nutty flavor of the browned butter.
How To Make Brown Butter Mashed Potatoes
Below is a summary of how to make garlic mashed potatoes. For a complete and detailed list of steps, see the recipe card at the end of this post.
Garlic-Infused Cream
- About 30 minutes before potatoes cooking potatoes, add whole milk, cream, garlic (cut side faced down), and black peppercorns to a small saucepan. Bring the mixture to a simmer over medium heat. Drop the heat to low, cover the saucepan and cook for 5 minutes. Remove from heat and leave covered; mixture will continue to steep. (Just before adding the milk mixture to the potatoes, make sure the mixture is warm, reheat if needed.)
Potatoes
- Add cubed potatoes to a large pot and fill with cold water. Bring to a boil over high heat then lower to a medium heat and cook for 20 minutes OR until potatoes are tender. While potatoes are cooking, make the sage brown butter sauce.
- Drain potatoes well and place back in the pot and on the stove burner. Carefully stir to remove any residual moisture, until it evaporates, about 30 seconds.
- It’s important to do the next step quickly and while potatoes are hot. Doing this with cold potatoes will potentially result in gummy mash. Where over mitts to protect your hands while handling hot potatoes.
- Rice potatoes into a large mixing bowl. Pour half of the warm, melted butter into the potatoes and mix with a spatula until incorporated. Repeat until all of the butter is added.
5. Strain the warm infused milk mixture into a fine mesh sieve and into a measuring cup. Pour half of the cream mixture and start with 1½ teaspoons of kosher salt. Mix until liquid is fully incorporated and smooth before adding more. Repeat with with remaining cream and salt. Adjust seasoning with salt, if necessary. Keep in mind that mashed potatoes typically need a fair amount of salt. Do not be shy with adding a generous amount otherwise you’ll end up with bland mashed potatoes.
Sage Brown Butter Sauce
- Melt butter in a saucepan. Keep a consistent stir and swirl of the pan. Keep swirling until butter begins to brown. You’ll notice foam start to form, then subside, this is normal. Once honey-colored milk solids begin to form along with a nutty aroma, add sage leaves and cook until leaves are fried. Remove pan from heat and season to taste with salt. Set aside.If need, you can reheat the butter mixture just before pouring over garlic mashed potatoes over low heat.
Tips and Tricks
- Mash the potatoes while they’re hot. Working with hot potatoes helps maintain a fluffy texture. Cold potatoes can become gummy when mashed.
- Strain the infused dairy mixture. Use a fine mesh sieve to remove the garlic and peppercorns, ensuring a smooth, velvety final mash with no unexpected bits.
- Don’t skimp on salt. Garlic mashed potatoes need a generous amount of salt to bring out their flavor. Adjust to taste, but don’t be afraid to season well.
- Brown the butter carefully. Stir constantly and keep an eye on the color to prevent it from burning. The moment it turns golden brown and emits a nutty aroma, it’s ready.
- Add sage leaves at the right time. Fry the sage leaves just as the butter reaches its perfect brown stage for a crispy texture and maximum flavor.
- Reheat the butter mixture if necessary. If the brown butter has cooled too much before serving, gently reheat it over low heat to restore its smooth, pourable consistency.
- Stir the drained potatoes to remove excess moisture. After draining, briefly stir the potatoes on the burner to evaporate any residual water, which ensures a creamier mash.
- Wondering what potatoes are best for mashed potatoes? Check out this traditional mashed potatoes recipe for my answer.
Variations
- Potatoes – Red potatoes are naturally soft and have a smooth texture that works well for mashed potatoes. Leaving the skin on adds a rustic feel and extra nutrients.
- Dairy – Half and half strikes a balance between richness and lightness, giving your mash a creamy texture without being too heavy. Warm it slightly before mixing for smoother incorporation.
- Roasted Garlic – Roasted garlic adds a deep, caramelized flavor that blends beautifully into the mashed potatoes. It provides a sweeter, more mellow garlic taste compared to raw garlic.
- Sour Cream – Sour cream adds a tangy depth and an extra layer of creaminess to the potatoes. It pairs well with the roasted garlic to create a balanced, slightly tangy mash.
- More Garlic Flavor – To amplify the garlic taste, adding a touch of garlic powder can enhance the flavor profile without overpowering the roasted garlic’s subtle sweetness.
Storage
Store mashed potatoes in an airtight container in the refrigerator for up to 3 days. Keep the brown butter sage sauce in a separate container to maintain its texture and flavor.
To reheat, warm the potatoes in a saucepan over low heat or in the microwave, adding a splash of half and half or melted butter for moisture. Reheat the brown butter sage sauce gently over low heat until it’s warm and pourable.
Frequently Asked Questions
What can I add to mashed potatoes for flavor?
Add roasted garlic for a deep, caramelized flavor and finish with a drizzle of rich, nutty brown butter infused with crispy sage. These additions create an irresistible, savory depth that elevates classic mashed potatoes to gourmet status.
How do you fix too much garlic in mashed potatoes?
If there’s too much garlic in your mashed potatoes, balance it out by adding more dairy, such as half and half or sour cream, to mellow the strong flavor. You can also mix in a bit more plain mashed potato to dilute the garlic intensity.
How do I prevent my mashed potatoes from becoming gummy?
Mash the potatoes while they’re still hot and avoid overworking them. Using a potato ricer or masher and adding warm dairy gradually helps maintain a fluffy, creamy texture.
What should I do if my brown butter cools down before serving?
Simply reheat the brown butter over low heat for a few seconds until it becomes warm and pourable again. Be careful not to overheat, as this can affect the flavor and burn the sage.
Looking for More Potato Recipes?
- Spicy Caesar Potato Salad
- Homemade French Fries
- Crispy Parmesan Potatoes
- Potatoes Au Gratin Gruyere
- Fondant Potatoes
Loving this Brown Butter Mashed Potatoes Recipe?
There’s a reason this garlic mashed potatoes recipe is loved by all! Leave a comment below and share your love for this recipe on Instagram and Pinterest. We love to see you get down in the kitchen. Thank you for supporting Whisper of Yum and happy eating!
Garlic Mashed Potatoes with Sage Brown Butter Sauce
Equipment
- Potato Ricer
- Spatula
Ingredients
Potatoes
- 2 pounds organic yukon gold potatoes, similar in size, peeled and cut into 1½-inch cubes
- ½ cup whole milk
- ½ cup heavy cream
- 10 whole black peppercorns
- 1 large head garlic, ¼ top removed
- 1 stick salted butter, melted
- 2 – 2½ teaspoons kosher salt, or to taste, Diamond Crystal brand
Sage Brown Butter
- 18 fresh sage leaves
- 1 stick salted butter
- kosher salt, to taste, Diamond Crystal brand
Instructions
Garlic-Infused Cream
- About 30 minutes before potatoes cooking potatoes, add whole milk, cream, garlic (cut side faced down), and black peppercorns to a small saucepan. Bring the mixture to a simmer over medium heat. Drop the heat to low, cover the saucepan and cook for 5 minutes. Remove from heat and leave covered; mixture will continue to steep. (Just before adding the milk mixture to the potatoes, make sure the mixture is warm, reheat if needed.)
Potatoes
- Add cubed potatoes to a large pot and fill with cold water. Bring to a boil over high heat then lower to a medium heat and cook for 20 minutes OR until potatoes are tender. While potatoes are cooking, make the sage brown butter sauce.
- Drain potatoes well and place back in the pot and on the stove burner. Carefully stir to remove any residual moisture, until it evaporates, about 30 seconds.
- It's important to do the next step quickly and while potatoes are hot. Doing this with cold potatoes will potentially result in gummy mash. Where over mitts to protect your hands while handling hot potatoes.
- Rice potatoes into a large mixing bowl. Pour half of the warm, melted butter into the potatoes and mix with a spatula until incorporated. Repeat until all of the butter is added.
- Strain the warm infused milk mixture into a fine mesh sieve and into a measuring cup. Pour half of the cream mixture and start with 1½ teaspoons of kosher salt. Mix until liquid is fully incorporated and smooth before adding more. Repeat with with remaining cream and salt. Adjust seasoning with salt, if necessary.Keep in mind that mashed potatoes typically need a fair amount of salt. Do not be shy with adding a generous amount otherwise you'll end up with bland mashed potatoes.
Sage Brown Butter Sauce
- Melt butter in a saucepan. Keep a consistent stir and swirl of the pan. Keep swirling until butter begins to brown. You'll notice foam start to form, then subside, this is normal. Once honey-colored milk solids begin to form along with a nutty aroma, add sage leaves and cook until leaves are fried. Remove pan from heat and season to taste with salt. Set aside. If need, you can reheat the butter mixture just before pouring over mashed potatoes over low heat.
