Herb-Crusted Rack of Lamb with Green Peppercorn Sauce
If you want a rack of lamb that feels special but is still manageable at home, this herb-crusted rack of lamb is the one. Fresh herbs, Dijon, and lemon bring brightness to the lamb, while the green peppercorn cream sauce adds depth and a gentle warmth without feeling heavy. Green peppercorns are softer and milder than black peppercorns, with a subtle briny heat that complements the richness of the lamb rather than overpowering it. This is the kind of lamb dinner recipe I make when I want something impressive without overthinking it. It is straightforward, dependable, and great for both weeknights and special dinners.
Ingredients
Rack of Lamb
- 2 frenched lamb racks 1.5 to 2 lb each 700 to 900 g, 7 to 8 bones per rack
- 2 teaspoon kosher salt 10 ml, plus more to taste
- 1 teaspoon freshly ground black pepper 5 ml
- 1 tablespoon avocado oil 15 ml or other high-heat oil
Herb Crust
- 1 cup finely chopped flat-leaf parsley 45 g
- 2 tablespoon very finely chopped rosemary leaves 15 g
- 1 tablespoon finely chopped thyme leaves 10 g
- 2 garlic cloves finely grated or mashed to a paste
- Zest of 1 lemon
- ½ teaspoon fennel seeds toasted and finely crushed (2.5 ml)
- 3 tablespoon Dijon mustard 45 ml
- 1 tablespoon whole grain mustard 15 ml
- 2 tablespoon extra-virgin olive oil 30 ml
- ½ cup fine fresh breadcrumbs or finely pulsed panko 40 g
- Pinch of kosher salt
Green Peppercorn Cream Sauce
- 1 large shallot very finely minced, about 2.5 oz (70 g)
- 1 tablespoon butter 15 ml
- 2 tablespoon brined green peppercorns drained (about 30 g)
- 1 cup low-sodium chicken stock 250 ml
- 2 cups heavy cream 35 per cent (500 ml)
- ½ to 1 teaspoon white miso whisked in at the end (2.5 to 5 ml)
- ⅓ cup finely grated Parmigiano Reggiano or Parmesan Cheese 30 g
- ½ teaspoon freshly ground black pepper 2.5 ml, plus more to finish
- Optional: 1 teaspoon Dijon mustard for extra tang
- Salt to taste
To Finish
- 1 to 2 teaspoon extra-virgin olive oil gently warmed (5 to 10 ml)
- Fresh thyme sprigs
- Extra-drained green peppercorns
- Freshly cracked black pepper
Instructions
Prepare the Lamb
- Pat the racks dry with a paper towel. Trim excess surface fat if needed, leaving a thin layer for flavour. Lightly score the fat cap diagonally using a sharp knife.
- Season all sides with 2 teaspoon kosher salt and 1 teaspoon black pepper.
- Let it sit at room temperature for 20 to 30 minutes while you prepare the crust.
Sear the Lamb
- Heat a 12.5-inch (oven-proof) skillet over medium-high heat for 2 to 3 minutes. Add avocado oil. The same skillet will be used later to roast the lamb.
- Sear the lamb fat-side down until deeply browned, about 2 to 3 minutes.
- Sear remaining sides for colour, 60 to 90 seconds per side, including the bone side briefly.
- Transfer the lamb to a rack to rest 3 to 5 minutes so surface heat settles.
Make the Herb Crust
- In a bowl, combine parsley, rosemary, thyme, garlic, lemon zest, and crushed fennel seed.
- Stir in Dijon, whole grain mustard, olive oil, breadcrumbs, and a pinch of salt.
- The mixture should resemble a thick paste. If dry, add olive oil 1 teaspoon at a time. If loose, add breadcrumbs 1 tablespoon at a time.
Crust and Roast
- Preheat the oven to 400°F (200°C) while the lamb rests and before applying the crust. TIP: Letting the lamb rest 3-5 minutes after searing allows the surface steam to dissipate. Crust applied to screaming-hot meat slides off. Warm meat holds it.
- Spread the herb crust evenly and thinly over the meaty top of each rack, pressing gently so it sticks.
- Carefully return the racks to the skillet, bone-side up, leaning toward each other, with the bones interlocking slightly at the top, forming a tented, crown-style shape. Transfer to the oven.
- Roast until the lamb reaches your personal preference of doneness. Use a meat thermometer to measure the internal temperature, place it in the thickest part and avoid the bone.Medium-rare: pull at 126 to 130°F (52 to 54°C)Medium: pull at 135°F (57°C)
- Start checking at 12 minutes. Most racks take 12 to 18 minutes, depending on size.
- Transfer lamb to a rack or tray and rest for 10 minutes.
Green Peppercorn Cream Sauce
- Pour off excess fat from the skillet, leaving about 1 tablespoon along with the browned bits.
- Set skillet over medium heat. Add butter and shallot. Cook 2 to 3 minutes until soft but not browned.
- Add green peppercorns and cook 30 seconds.
- Add chicken stock, scraping up fond. Reduce by about half, 3 to 5 minutes.
- Add cream and black pepper. Simmer gently, stirring often, until it coats a spoon, 6 to 10 minutes.
- Remove from heat and whisk in white miso, starting with ½ tsp. Adjust to taste.
- Stir in Parmigiano Reggiano until smooth. Season with salt if needed.
- Loosen with a splash of stock if the sauce thickens too much.
Slicing and Serving
- Warm serving plates so the lamb stays hot at the table.
- Spoon a little of the green peppercorn sauce onto the plates first. This helps keep the crust from getting soggy.
- Slice each rack into double chops for a generous, shared-style presentation, or single chops if you prefer smaller portions. Use a sharp knife and cut cleanly between the bones.
- Arrange the lamb with the crust facing up or on the side so it stays crisp.
- Pass extra sauce at the table for everyone to add their own.
- Finish with a few green peppercorns, freshly cracked black pepper, a light drizzle of olive oil, and a few thyme leaves if you like.
What To Serve With a Rack Of Lamb
- Serve with mini roasted herbed potatoes, creamy mashed potatoes or bomba potatoes. Add a selection of roasted vegetables like peppers, zucchini and onions and a fresh green salad with a shallot vinaigrette.
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Video
Notes
Tips for Success
- Always use an instant-read thermometer. Rack of lamb cooks quickly and precision matters.
- Finely chopped herbs and fine breadcrumbs prevent crust separation; layer on thinly.
- Letting the lamb rest 3-5 minutes after searing allows the surface steam to dissipate. Crust applied to screaming-hot meat slides off. Warm meat holds it.
- Make the sauce while the lamb rests so everything is hot for plating.
- Very large racks may need 18 to 22 minutes in the oven.
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