July 7, 2026 · 15 min

Pan-Seared Steak with Creamy Peppercorn Sauce, Maple-Sage Sweet Potatoes and Lemony Asparagus

Side Dish15 min1636 cal / serving

Indulge in a truly special dinner that feels like a night out, right from your own kitchen. This recipe features tender pan-seared sirloin steak draped in a velvety au poivre sauce made with freshly crushed peppercorns and crème fraîche. On the side, creamy mashed sweet potatoes get a fragrant boost from fresh sage and a touch of maple syrup, while bright lemony roasted asparagus adds a fresh, crisp contrast.

Every element comes together beautifully, making it perfect for a date night, holiday meal or any occasion that calls for something impressive. The steak develops a deep brown crust, the sauce is rich and peppery and the sweet potatoes are luxuriously smooth. Follow these simple steps to create a memorable, balanced plate that will have everyone asking for seconds.


Recipe details

Side Dish15 min1636 cal / serving2 servings

Nutrition per serving

Calories1636 kcalProtein55.4 gFat130.1 gCarbs60.9 gSugar21.3 gFiber3 gSodium1337 mg

Dietary labels

Gluten-free: yesLactose-free: noDairy-free: no

Allergen check

Gluten / wheat: not detectedMilk / dairy: containsEgg: not detectedFish: not detectedShellfish: not detectedPeanut: not detectedTree nuts: not detectedSoy: not detectedSesame: not detectedMustard: not detectedCelery: not detectedSulphites: not detectedLupin: not detectedMolluscs: not detected

Values are calculated per serving from ingredient amounts and the ingredient nutrition reference per 100g. Allergen and diet labels use available ingredient metadata and name matching; always check product labels for strict diets or allergies. Some ingredient amounts or nutrition values were incomplete, so this is marked as a partial estimate.


Ingredients

Sirloin Steak12 ounce Sirloin SteakView ingredient guide
Asparagus6 ounce AsparagusView ingredient guide
Crème Fraîche4 tablespoon Crème FraîcheView ingredient guide
Lemon1 unit LemonView ingredient guide
Sweet Potato2 unit Sweet PotatoView ingredient guide
Maple Syrup1 tablespoon Maple SyrupView ingredient guide
Garlic Powder1 teaspoon Garlic PowderView ingredient guide
Sage0.125 ounce SageView ingredient guide
Saltteaspoon (tsp) SaltView ingredient guide
Butter3 tablespoon (tbsp) ButterView ingredient guide
Black Pepperteaspoon (tsp) Black PepperView ingredient guide

Instructions

  1. Adjust rack to top position and preheat oven to 425°F. Wash and dry produce. Peel sweet potatoes and dice into ½-inch pieces. Place sweet potatoes in a medium pot with enough salted water to cover by 2 inches. Bring to a boil and cook until tender when pierced with a fork, 15-20 minutes. (Cover pot with a lid to bring to a boil more quickly.) Drain sweet potatoes and return to pot; cover to keep warm.
  2. While sweet potatoes cook, place 2 tablespoons butter in a small bowl and let come to room temperature. Place peppercorns in a zip-close bag and crush with a rolling pin or heavy-bottomed pan. Trim and discard bottom 1 inch from asparagus. Pick sage leaves from stems and finely chop until you have 1 tablespoon. Quarter the lemon.
  3. Toss asparagus on a baking sheet with a drizzle of oil, salt and pepper. Roast on top rack until browned and tender, 10-12 minutes.
  4. Meanwhile, pat steak dry with paper towels; season all over with salt and pepper. Heat a drizzle of oil in a large pan over medium-high heat. Add steak and cook to desired doneness, 3-6 minutes per side. Turn off heat; transfer steak to a cutting board to rest for at least 5 minutes. Wipe out any burned bits from pan.
  5. While steak rests, heat a drizzle of oil in the same pan over medium-low heat. Add ½ teaspoon crushed peppercorns (measure carefully; we sent more). Cook, stirring, until fragrant, about 30 seconds. Stir in ¼ cup water and stock concentrate. Simmer until thick enough to coat the back of a spoon, 1-3 minutes. Remove pan from heat; stir in half the crème fraîche and 1 tablespoon butter until melted and combined. Cover to keep warm. (If sauce seems too thick, add a small splash of water.)
  6. To the bowl with softened butter, add half the maple syrup, half the garlic powder, 1 teaspoon chopped sage, salt and pepper. Using a fork, stir to combine. (If needed, microwave butter for 10-15 seconds to soften.) To the pot with sweet potatoes, add half the maple-sage butter (save the rest for serving), remaining crème fraîche, remaining chopped sage and remaining garlic powder. Mash with a potato masher or fork until smooth and creamy. Season with salt and pepper.
  7. If asparagus has cooled, reheat in oven for 2-3 minutes. Slice steak against the grain. Divide steak, sweet potatoes and asparagus between plates. Spoon sauce over steak. Top sweet potatoes with remaining maple-sage butter. Squeeze lemon juice over asparagus and serve with remaining lemon wedges on the side.

Recipe Tips

For the best crust on the steak, pat it very dry before seasoning and searing.

Crush the peppercorns just before using for maximum flavor.

Let the steak rest after cooking to keep it juicy.

If the sauce becomes too thick, thin it with a little water.

FAQ

Can I use a different cut of steak?

Yes, you can substitute with another tender cut like ribeye or strip steak. Adjust cooking time as needed.

What can I use instead of crème fraîche?

Sour cream or heavy cream can be used as a substitute, though the flavor and texture will be slightly different.

Can I prepare the sweet potatoes ahead of time?

Yes, you can boil and mash the sweet potatoes in advance. Reheat gently before serving, adding a splash of milk or water if needed.

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