Garlic Butter Steak & Creamy Mash Recipe
If there’s any dish that instantly makes a weeknight dinner feel special or turns an ordinary date night into a celebration, it’s the Garlic Butter Steak & Creamy Mash. This recipe wraps juicy, seared steak in a silky cloak of garlicky butter, then pairs it with impossibly creamy mashed potatoes – talk about comfort food with serious wow-factor! Every bite balances rich, savory flavors and pillowy smooth mash, all dressed up with golden butter and fragrant parsley. Whether you’re serving this for a crowd or just spoiling yourself, it’s a dish that never fails to impress and satisfy.
Ingredients You’ll Need

Ingredients You’ll Need
One of the best things about Garlic Butter Steak & Creamy Mash is just how approachable the ingredient list is. Every single component matters, bringing out bold flavors, dreamy textures, and a sense of pure indulgence you’ll crave again and again.
- Steaks (2 ribeye or sirloin, about 1 inch thick): The star of the show! Choose well-marbled cuts for maximum juiciness and flavor.
- Olive oil (1 tbsp): Helps achieve that gloriously golden sear on the steak.
- Salt & black pepper to taste: Season generously; this simple combo opens up all the natural flavors.
- Unsalted butter (4 tbsp for steak, 4 tbsp for mash): Provides a luscious, melt-in-your-mouth finish both for the steak and the creamy potatoes.
- Garlic (4 cloves, smashed): Infuses the butter with deep, aromatic flavor; a must for that signature steakhouse vibe.
- Fresh parsley (1 tbsp, optional): Adds a pop of color and a burst of fresh flavor to brighten every plate.
- Russet potatoes (2 lbs, peeled and chopped): The foundation for creamy mash with the classic starchy, fluffy texture you want.
- Whole milk (1/2 cup): Makes the mash smooth and rich without being too heavy.
- Sour cream (1/4 cup): Adds a subtle tang and an ultra-creamy consistency to the potatoes.
- Extra salt and pepper to taste for mash: Brings everything together; taste as you mash to find your perfect seasoning balance.
How to Make Garlic Butter Steak & Creamy Mash
Step 1: Boil and Mash the Potatoes
Begin by getting your creamy mash started, since it makes the perfect bed for your juicy steaks. Place the peeled and chopped potatoes in a large pot, cover with cold salted water, and bring to a simmer. Let them cook for 15 to 18 minutes, until the potatoes are fork-tender but not waterlogged. Drain well and return them to the warm pot, then immediately add butter, warm milk, sour cream, salt, and pepper. Mash until ultra-smooth and creamy. Cover to keep warm so they’re ready just in time for serving your Garlic Butter Steak & Creamy Mash.
Step 2: Season and Sear the Steaks
While your potatoes are cooking, pat the steaks completely dry with paper towels – this is key for a good sear. Season both sides generously with salt and freshly ground black pepper. Heat olive oil in a cast iron skillet until shimmering hot, then add the steaks. Sear them undisturbed for 3–4 minutes per side, depending on thickness and how you like your steak cooked. You’re looking for a crisp, flavorful crust.
Step 3: Make the Garlic Butter and Baste
As the steaks approach medium-rare perfection, reduce the heat to medium. Add the butter and smashed garlic cloves to the skillet. As the butter melts and bubbles, use a spoon to baste the hot, garlicky butter over the steaks. This step infuses them with deep, rich flavor and shines up that beautiful crust. Keep basting for the final 2 minutes of cooking time.
Step 4: Rest the Steaks
Transfer the steaks to a warm plate and let them rest for about 5 minutes. This little break ensures all the juices are reabsorbed, keeping every slice tender and extra juicy—don’t skip it, or your Garlic Butter Steak & Creamy Mash just won’t be the same!
Step 5: Plate and Serve
To serve, spoon generous helpings of mashed potatoes onto each plate. Thinly slice the steaks and arrange them on top of the mash, then drizzle any remaining garlic butter from the pan over everything. Sprinkle with fresh parsley, if using. This is when the magic of Garlic Butter Steak & Creamy Mash truly shines—rich, savory, silky, and oh-so-impressive.
How to Serve Garlic Butter Steak & Creamy Mash
Garnishes
A flourish of freshly chopped parsley is classic, but you could also sprinkle your Garlic Butter Steak & Creamy Mash with snipped chives or thinly sliced green onions for a mild oniony zip. A quick dusting of flaky sea salt right before serving makes each bite sing.
Side Dishes
This dish is plenty indulgent on its own, but a crisp green salad tossed in a sharp vinaigrette, roasted asparagus, or buttery steamed green beans make bright, fresh accompaniments. They add the perfect color contrast and help balance the meal.
Creative Ways to Present
For a dinner party, layer individual portions of mash into shallow bowls, fan out the steak slices, and drizzle with garlic butter right at the table. You could also create shared platters family-style: a mountain of creamy mash crowned with juicy steak, with hot garlic butter poured dramatically over the top for a bit of tableside theater. However you serve it, Garlic Butter Steak & Creamy Mash always earns applause.
Make Ahead and Storage
Storing Leftovers
Any leftover Garlic Butter Steak & Creamy Mash should be cooled to room temperature, then placed in airtight containers and refrigerated. Both the steak and mash will stay fresh for up to 3 days, making your next lunch or dinner just as special as the first round.
Freezing
The creamy mash freezes surprisingly well! Spoon it into freezer-safe containers and smooth the tops, then label and freeze for up to one month. The steak can also be frozen, although it’s at its juiciest fresh. For best results, freeze the steak slices separately, well-wrapped, to preserve tenderness.
Reheating
For the mash, reheat gently in a saucepan over low heat, stirring in an extra splash of milk or a knob of butter if needed. For steak, warm slices in a covered skillet over low heat, adding a dab of the extra garlic butter if you saved it, or just a touch of broth to keep everything moist. Microwave works in a pinch, but gentle heat delivers the juiciest results.
FAQs
How do I know when my steak is perfectly cooked?
The best way to ensure your Garlic Butter Steak & Creamy Mash is steakhouse-worthy is to use an instant-read thermometer. Aim for 130°F for medium-rare, 140°F for medium. Letting the steak rest is crucial so the juices redistribute and every slice stays succulent.
Can I use a different cut of steak?
Definitely! While ribeye and sirloin bring great flavor and tenderness, strip steak, filet mignon, or even a thick-cut New York strip work beautifully. Just adjust cooking time based on thickness and doneness you prefer.
What’s the best way to get creamy mash that’s not gluey?
Avoid over-mixing; use a potato masher or a ricer for silky mash, and add the butter and milk while the potatoes are still hot. Also, make sure to drain the potatoes well so extra moisture doesn’t weigh down the mash in your Garlic Butter Steak & Creamy Mash.
How can I make the recipe gluten-free?
Good news: Garlic Butter Steak & Creamy Mash is naturally gluten-free as written! Just double-check that your sour cream and other dairy add-ins are certified gluten-free if that’s a concern.
What else can I add for extra flavor?
Try stirring roasted garlic or fresh herbs into the mash, or add a splash of cream for extra richness. For the steak, a sprig of thyme or rosemary in the butter basting step is a game-changer. Play and make it your own!
Final Thoughts
If you’re ready to experience the ultimate in steakhouse comfort without ever leaving your kitchen, Garlic Butter Steak & Creamy Mash truly delivers. Treat yourself — you deserve a meal that feels a little fancy, deeply satisfying, and totally unforgettable. Don’t wait for a special occasion; make any night memorable with this show-stopping plate!
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Garlic Butter Steak & Creamy Mash Recipe
- Total Time: 40 minutes
- Yield: 2 servings 1x
- Diet: Vegetarian
Description
Indulge in a luxurious dinner with this recipe for Garlic Butter Steak & Creamy Mash. Juicy ribeye or sirloin steaks are seared to perfection in a garlic butter sauce and served alongside rich and creamy mashed potatoes.
Ingredients
For the Steak:
- 2 ribeye or sirloin steaks (about 1 inch thick)
- 1 tablespoon olive oil
- Salt and black pepper to taste
- 4 tablespoons unsalted butter
- 4 cloves garlic (smashed)
- 1 tablespoon chopped fresh parsley (optional)
For the Creamy Mash:
- 2 pounds russet potatoes (peeled and chopped)
- 4 tablespoons unsalted butter
- 1/2 cup whole milk
- 1/4 cup sour cream
- Salt and pepper to taste
Instructions
- Prepare the Creamy Mash: Boil peeled and chopped potatoes in salted water until fork-tender. Drain and return to the pot. Add butter, milk, sour cream, salt, and pepper. Mash until smooth and creamy. Cover to keep warm.
- Cook the Steak: Pat the meat dry and season both sides with salt and pepper. Sear in a hot skillet, add butter and smashed garlic in the last few minutes. Baste the steaks with the garlic butter. Rest the steaks before slicing.
- Serve: Spoon creamy mash onto plates, top with sliced steak, drizzle with garlic butter, and sprinkle with parsley if desired.
Notes
- Use Yukon Gold potatoes for a richer mash.
- For extra flavor, add cream or roasted garlic to the potatoes.
- Letting the steaks rest before slicing ensures juicier results.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Main Course
- Method: Stovetop
- Cuisine: American
Nutrition
- Serving Size: 1 steak with mashed potatoes
- Calories: 680
- Sugar: 3g
- Sodium: 300mg
- Fat: 45g
- Saturated Fat: 23g
- Unsaturated Fat: 20g
- Trans Fat: 0g
- Carbohydrates: 35g
- Fiber: 3g
- Protein: 38g
- Cholesterol: 155mg