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U.S. Highbush Blueberry Council

Roasted Rack of Lamb with Blueberry Sauce

Roasted Rack of Lamb with Blueberry Sauce

Recipe by Becky Winkler, “A Calculated Whisk” Blog

Roasted rack of lamb with blueberry sauce makes for a truly dynamic holiday dish. Pairing savory lamb with a tangy sauce results in a full spectrum of flavors to enjoy. Guests around your table are sure to be delighted by this mouthwatering dish of roasted rack of lamb with blueberry sauce.


Lamb Ingredients

  • 1 rack of lamb (about 1-1/4 pounds)
  • 1 tablespoon unsalted butter, at room temperature
  • 2 tablespoons crème fraîche
  • Salt and freshly ground pepper, to taste

Blueberry Sauce Ingredients

  • 1 cup (5 ounces) frozen blueberries (do not defrost)
  • 1 small shallot, finely chopped
  • 1 teaspoon lemon juice
  • 1/4 teaspoon sea salt
  • 1/2 cup crème fraîche, at room temperature
  • 1 teaspoon honey
  • 1/2 teaspoon Dijon mustard
  • 1 tablespoon hot water
  • 1 tablespoon fresh thyme



  1. Remove the rack of lamb from the refrigerator 1 hour before you plan to cook it; bring to room temperature. Use a sharp knife to score the fat cap on the top of the rack, which will help it form a crispy crust.
  2. Season the meat with sea salt and pepper on all sides.
  3. When the lamb has been out for about 40 minutes, preheat the oven to 450°F.
  4. In a small bowl, mix the butter and crème fraîche with 1/4 teaspoon of sea salt and a few generous grinds of pepper.
  5. Rub a little bit of the butter and crème fraîche mixture onto the bottom and sides of the rack, and slather the rest of it onto the top.
  6. Place the rack in a large cast iron skillet. Roast lamb for 15 minutes; reduce  heat to 400°F and roast for 10 more minutes for medium rare or 15 more minutes for medium, or until a meat thermometer inserted into the center reads 130° for medium rare or 135° for medium.
  7. Transfer the lamb to a cutting board, cover loosely with foil, and let rest for 10 minutes.
  8. In the meantime, in a small saucepan, heat blueberries, chopped shallot, lemon juice, and salt in small saucepan with a teaspoon of water.
  9. Cook, stirring occasionally, for about ten minutes, or until most of the blueberries have popped and the liquid around them is syrupy.
  10. Let cool for at least ten minutes, and then transfer to a blender or food processor and puree until smooth. Add the crème fraîche, honey and mustard; process again. Add hot water and puree until combined.
  11. Return the sauce to the pan and cover to keep warm.
  12. Use a carving knife to slice the rack into 4 pieces (with 2 bones in each). It’s easiest to start by standing the rack up and holding onto the two bones at one end with your non-­dominant hand.  Using the other hand, slice down between the second and third bones with a few quick, sweeping strokes. Repeat the same method for the other pieces.
  13. To serve, spoon about two tablespoons of sauce onto each plate; sprinkle with thyme. Top with the lamb, dragging the meat from the center of the dollop of sauce outward to create a festive swirl if desired.