Longhorn Mashed Potatoes Recipe: Creamy, Buttery Restaurant Copycat

Recreating Longhorn Steakhouse’s signature mashed potatoes at home is simpler than you’d expect. This recipe delivers the same creamy, buttery texture that makes their side dish legendary, using just a handful of pantry staples and a few key techniques.

The secret lies in the perfect balance of Yukon Gold potatoes, real butter, and heavy cream—plus one unexpected ingredient that restaurant chefs rely on. With precise timing and proper mashing, you’ll achieve that smooth, velvety consistency that pairs perfectly with steak or stands alone as a comforting side.

Ingredients for Longhorn Mashed Potatoes

Yukon Golds, real dairy, and that secret restaurant trick—these ingredients nail the Longhorn copycat vibe.

The potatoes are everything here. Yukon Golds give that buttery texture without turning gluey—skip the Russets. I grab mine from Whole Foods when they’re on sale, but any grocery store works. The bouillon is the secret weapon: Better Than Bouillon (vegetarian chicken flavor if you want to keep it meat-free) adds that umami depth restaurants use. Don’t skip it. For the dairy, full-fat everything—this isn’t the time for skim milk.

No heavy cream? Half-and-half with a splash of melted butter gets you close. Sour cream can be Greek yogurt in a pinch (just strain it first). The garlic should be freshly minced to a paste—jarred stuff lacks punch. If you’re worried about salt, start with 1 tsp and adjust—Diamond Crystal kosher salt is less salty by volume than table salt. For extra richness, some chefs swear by a splash of white truffle oil at the end (optional but fancy).

Mashed potatoes hate cold—warm your dairy before mixing to prevent gummy texture. Leftovers keep 3-4 days sealed tight in the fridge. Reheat with extra cream or butter, stirring over low heat. For make-ahead, prep everything except mashing—boil potatoes, keep them in the water, then finish right before serving. The chives are best fresh, so add them last minute.

Step-by-Step Instructions for Longhorn Mashed Potatoes

Here’s how to nail that restaurant-quality texture—creamy, rich, and packed with flavor.

Step 1: Prepare and Boil the Potatoes

Place the 2.5 lb Yukon Gold potatoes (already peeled and cut into 1-inch cubes) in a large pot. Cover them with cold water by about 2 inches—this ensures even cooking. Add 1.5 tsp kosher salt to the water; it should taste like the sea. Bring to a rolling boil over high heat, then reduce to medium and simmer for 15-20 minutes.

You’ll know they’re done when a fork slides in effortlessly and the cubes break apart with gentle pressure. Don’t overcook them—they should hold their shape but be tender. Drain immediately in a colander, then return them to the pot. Let them sit for 1 minute to evaporate excess moisture; this prevents watery mashed potatoes.

Step 2: Infuse Cream with Garlic and Bouillon

While the potatoes cook, combine the 0.75 cup heavy cream, 0.5 cup whole milk, 3 cloves garlic cloves (minced to a fine paste), and 1 tsp chicken bouillon powder in a small saucepan. Warm this mixture over medium-low heat for 5-7 minutes—just until tiny bubbles form at the edges and you can smell the garlic’s aroma.

Don’t let it boil; you want to gently infuse the flavors without scalding the dairy. The cream should reach about 160°F—hot enough to dissolve the bouillon but not so hot it curdles. Remove from heat and let it steep while you finish the potatoes. This step builds the deep, savory base that makes these potatoes taste like the restaurant version.

Step 3: Mash and Incorporate the Butter

Return the drained potatoes to their pot and mash them coarsely with a potato masher. You want some texture, not a perfectly smooth puree. Add the 0.5 cup unsalted butter (cold and cubed) and continue mashing until the butter is fully incorporated and the potatoes look creamy but still have some body.

The cold butter might seem counterintuitive, but it melts slowly as you mash, creating tiny pockets of richness instead of making the potatoes greasy. Work quickly while the potatoes are still hot—they absorb fat and liquid best when warm. You’re aiming for a rustic texture with no lumps, but don’t overwork them or they’ll turn gluey.

Step 4: Finish with Cream Mixture and Sour Cream

Slowly pour the warm garlic cream mixture into the potatoes while stirring gently with a wooden spoon. Add the 0.5 cup sour cream and continue folding until everything is just combined. The mixture should be glossy and hold its shape when you pull the spoon through it.

Taste and adjust seasoning with 0.5 tsp freshly ground black pepper—you want that subtle kick that balances the richness. If the potatoes seem too thick, add a splash of warm milk, but remember: they’ll loosen slightly as they sit. The sour cream adds that signature tangy depth that sets these apart from basic mashed potatoes.

Step 5: Rest and Garnish for Serving

Transfer the mashed potatoes to a serving bowl and let them rest for 5 minutes before garnishing. This brief rest allows the flavors to meld and the texture to set. Just before serving, sprinkle with the 2 tbsp fresh chives and give them one final gentle stir to distribute the flecks of green.

The chives add freshness and color, but their flavor should be subtle—not overpowering. Serve immediately while still warm and creamy. For that true restaurant experience, create a well in the center and add an extra pat of butter right before bringing them to the table. The heat will melt it slowly, creating a rich pool of buttery goodness with every scoop.

Storing and Reheating This longhorn mashed potatoes

Fridge Storage Tips

Let your mashed potatoes cool completely—about 2 hours at room temperature—before transferring to an airtight container. I use glass containers with snap-tight lids to prevent fridge odors from seeping in. They’ll keep for 3-4 days at 40°F or below, though the texture is best within the first 48 hours. ❄️

Freezer Storage Guide

For longer storage, portion the potatoes into freezer-safe bags (I like Ziploc quart-size), pressing out all excess air before sealing. They’ll maintain quality for up to 2 months at 0°F. Label with the date—trust me, you’ll forget when you made them! Thaw overnight in the fridge before reheating for best results.

Stovetop Reheating

Transfer the cold potatoes to a saucepan and add 2-3 tbsp whole milk or cream per cup of potatoes. Warm over low heat, stirring constantly with a wooden spoon. This gentle method prevents scorching while restoring that creamy texture. Heat until they reach 165°F internally, about 8-10 minutes. 🔥

Microwave Method

For quick reheating, place portions in a microwave-safe bowl with 1 tbsp butter or cream per serving. Cover with a damp paper towel and heat at 50% power for 2-minute intervals, stirring between each. This prevents rubbery edges while evenly warming through.

Texture Revival Trick

If your potatoes seem dry after storage, fold in 1-2 tbsp warm sour cream while reheating. The acidity brightens flavors, and the fat restores that signature richness. I learned this trick from a line cook at a steakhouse—it works every time! For extra decadence, top with freshly grated Parmesan cheese before serving.

Make-Ahead Strategy

You can prep everything except the final mashing 1 day ahead. Boil and drain the potatoes, then store them in their cooking water in the fridge. Reheat the water gently, drain, and proceed with the recipe. The bouillon-infused cream can also be made ahead—just reheat it gently before combining. This approach saves 30 minutes on party day! ⏰

Frequently Asked Questions