Seared and oven-roasted beef tenderloin finished with a melting rosemary-garlic butter that produces tender, juicy medallions with a fragrant herb crust and glossy pan jus.
Tenderloin with Melting Rosemary-Garlic Butter
A simple roast that looks special but cooks like a weeknight—seared beef tenderloin finished with a fragrant herb butter and glossy pan jus.
This is the sort of recipe that bridges dinner-party polish and practical weeknight cooking: a whole beef tenderloin seared to a deep brown crust, slid into a hot oven, then sliced into juicy medallions that get a final, glorious finish of melting rosemary-garlic butter. The compound butter does more than add richness — Dijon and lemon zest cut through the fat and lift the savory herbs, so each bite feels bright and balanced rather than heavy.
Texture and aroma are where this dish wins. Searing creates that irresistible Maillard crust that gives way to a tender interior after a quick roast; slicing into medallions lets the buttery herb mixture pool and mingle with the pan’s glossy jus. Fresh rosemary and thyme perfume the meat while garlic and mustard knit the butter into a silky finish that clings to every slice.
A few practical notes make it fail-safe: take the tenderloin out of the fridge 30–45 minutes before cooking and pat it dry so it sears evenly, and don’t skimp on that high heat sear before roasting. The rosemary butter can be mixed hours—or even a day—ahead and kept chilled; bring it back toward room temperature so it melts instantly on the hot meat. Let the roast rest a short time after it comes out of the oven so the juices redistribute.
Serve slices spooned with the pan jus and extra herb butter alongside roasted low-carb vegetables or cauliflower mash for a keto-friendly plate that feels luxurious. Leftover medallions are excellent cold for salads or quickly warmed slices over steamed greens, so the effort stretches beyond one meal.
Ingredients
How to Make Beef Tenderloin Rosemary Butter Tray
- Take the beef tenderloin out of the fridge 30–45 minutes before cooking so it comes toward room temperature; preheat oven to 425°F (220°C).
- Pat the tenderloin dry with paper towels and season all over with 1 tsp kosher salt and 1 tsp black pepper.
- Heat a large ovenproof skillet over medium-high heat with 1 tbsp olive oil until shimmering; sear the tenderloin on all sides, about 2–3 minutes per side, until a deep brown crust forms.
- While the meat sears, make the rosemary butter: in a bowl combine softened unsalted butter, chopped fresh rosemary, minced garlic, chopped thyme, Dijon mustard, lemon zest, and the remaining 0.5 tsp kosher salt; mix until smooth.
- Transfer the seared tenderloin to a rimmed baking sheet or leave in the skillet; spread about half the rosemary butter over the top and place remaining butter nearby on the tray.
- Roast in the preheated oven until an instant-read thermometer inserted into the thickest part reaches 120–125°F (49–52°C) for medium-rare, about 12–20 minutes depending on thickness; spoon melted butter and pan juices over the tenderloin once or twice while it roasts.
- Remove the tenderloin when it reaches target temperature, tent loosely with foil and let rest for 10–15 minutes (carryover will raise the temperature to about 125–130°F); reserve pan juices.
- Slice into 3/4–1 inch medallions, arrange on a warmed platter, spoon the reserved pan juices and any remaining rosemary butter over the slices, and serve immediately.
Recipe Card
Beef Tenderloin Rosemary Butter Tray
Seared and oven-roasted beef tenderloin finished with a melting rosemary-garlic butter that produces tender, juicy medallions with a fragrant herb crust and glossy pan jus.
- Prep
- 15 min
- Cook
- 30 min
- Servings
- 4
Ingredients
Instructions
- Take the beef tenderloin out of the fridge 30–45 minutes before cooking so it comes toward room temperature; preheat oven to 425°F (220°C).
- Pat the tenderloin dry with paper towels and season all over with 1 tsp kosher salt and 1 tsp black pepper.
- Heat a large ovenproof skillet over medium-high heat with 1 tbsp olive oil until shimmering; sear the tenderloin on all sides, about 2–3 minutes per side, until a deep brown crust forms.
- While the meat sears, make the rosemary butter: in a bowl combine softened unsalted butter, chopped fresh rosemary, minced garlic, chopped thyme, Dijon mustard, lemon zest, and the remaining 0.5 tsp kosher salt; mix until smooth.
- Transfer the seared tenderloin to a rimmed baking sheet or leave in the skillet; spread about half the rosemary butter over the top and place remaining butter nearby on the tray.
- Roast in the preheated oven until an instant-read thermometer inserted into the thickest part reaches 120–125°F (49–52°C) for medium-rare, about 12–20 minutes depending on thickness; spoon melted butter and pan juices over the tenderloin once or twice while it roasts.
- Remove the tenderloin when it reaches target temperature, tent loosely with foil and let rest for 10–15 minutes (carryover will raise the temperature to about 125–130°F); reserve pan juices.
- Slice into 3/4–1 inch medallions, arrange on a warmed platter, spoon the reserved pan juices and any remaining rosemary butter over the slices, and serve immediately.
Nutrition
- Carbohydrates
- 2
- Saturated Fat
- 20
- Sodium
- 900
- Fiber
- 0.5
- Unsaturated Fat
- 41
- Protein
- 59
- Fat
- 62
- Cholesterol
- 240
- Trans Fat
- 0.6
- Calories
- 820
- Sugar
- 0.5