There’s something deeply comforting about a slow-roasted lamb shoulder sizzling away in a cast-iron pan. This Garlic Herb Roasted Lamb Shoulder is coated in fresh rosemary, tarragon, garlic, Dijon, and lemon, then roasted low and slow until incredibly tender with a bold, flavorful pan sauce.
Why You’ll Love This Recipe
- Big flavor, simple ingredients
- One-pan cast-iron dinner
- Perfect for holidays or casual entertaining
- Juicy, tender lamb every time
- Naturally low-carb & gluten-free
Garlic Herb Roasted Lamb Shoulder Ingredients
Serves 6–8
Herb Garlic Paste
- 6 cloves garlic, minced
- 3 tablespoons fresh rosemary, finely chopped
- 2 tablespoons fresh tarragon, finely chopped
- 2 tablespoons fresh lemon juice
- 1 tablespoon Dijon mustard
- 3 teaspoons kosher salt
- 2 teaspoons hot sauce
- 1 teaspoon ground cumin
- 1 teaspoon ground black pepper
- 2 tablespoons olive oil
Lamb
- 1 (3–4 pound) lamb shoulder, trussed
- 2 lemons, halved
- Garnish: fresh rosemary & tarragon (optional)
How to Make Garlic Herb Roasted Lamb Shoulder
1. Preheat
Preheat oven to 325°F.
2. Make the Herb Paste
In a medium bowl, whisk together garlic, rosemary, tarragon, lemon juice, Dijon mustard, salt, hot sauce, cumin, and black pepper. Slowly whisk in olive oil until a thick paste forms.
3. Sear the Lamb
Heat a large enamel-coated cast-iron braiser or Dutch oven over medium-high heat with olive oil.
Add lamb and sear until deeply browned on all sides—about 4 minutes per side.
Remove lamb from pan.
4. Season & Roast
Brush the herb garlic paste generously over the lamb. Return lamb to the pan and add lemon halves, cut-side down. Cover with lid.
Transfer to oven and bake 45–55 minutes, until internal temperature reaches 135°F.
5. Rest & Serve
Remove from oven and let rest 20 minutes.
Serve with roasted lemon halves and garnish with fresh herbs if desired.
Make It Your Own
- More heat: Add extra hot sauce or red pepper flakes
- Mediterranean twist: Add oregano and a splash of white wine to the pan
- Extra sauce: Spoon pan juices over sliced lamb before serving
- No tarragon? Swap with thyme or oregano
What to Serve With Roasted Lamb Shoulder
- Garlic mashed potatoes or cauliflower au gratin
- Roasted carrots or green beans
- Simple arugula salad with lemon vinaigrette
- Warm crusty bread for soaking up the pan juices
Garlic Herb Roasted Lamb Shoulder
- Total Time: 1 hour 15 minutes
- Yield: 6–8 SERVINGS 1x
Description
This garlic herb roasted lamb shoulder is juicy, tender, and packed with fresh rosemary, tarragon, garlic, and lemon. Seared in a cast-iron pan and roasted low and slow, it’s an easy yet impressive dinner perfect for holidays, Sunday supper, or entertaining.
Ingredients
Herb Garlic Paste
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6 cloves garlic, minced
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3 tablespoons fresh rosemary, finely chopped
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2 tablespoons fresh tarragon, finely chopped
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2 tablespoons fresh lemon juice
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1 tablespoon Dijon mustard
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3 teaspoons kosher salt
-
2 teaspoons hot sauce
-
1 teaspoon ground cumin
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1 teaspoon ground black pepper
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2 tablespoons olive oil
Lamb
-
1 (3–4 pound) lamb shoulder, trussed
-
2 lemons, halved
Optional Garnish
-
Fresh rosemary
-
Fresh tarragon
Instructions
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Preheat oven to 325°F.
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In a medium bowl (or food processor), combine garlic, rosemary, tarragon, lemon juice, Dijon mustard, salt, hot sauce, cumin, and black pepper. Slowly whisk or pulse in olive oil until a thick paste forms.
-
Heat a large enamel-coated cast-iron braiser or Dutch oven over medium-high heat. Add a drizzle of olive oil. Sear the lamb on all sides until deeply browned, about 4 minutes per side. Remove lamb from the pan.
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Brush the garlic herb paste generously over the lamb. Return lamb to the pan and add lemon halves, cut-side down. Cover with a lid.
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Transfer to the oven and roast for 45–55 minutes, or until a thermometer inserted into the thickest part registers 135°F for medium-rare.
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Remove from oven and let rest for 20 minutes before slicing. Serve with roasted lemons and garnish with fresh herbs if desired.
Notes
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For medium doneness, cook to 145°F.
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Letting the lamb rest is essential for juicy slices.
-
Spoon pan juices over sliced lamb before serving for extra flavor.
- Prep Time: 20 MINS
- Cook Time: 55 MINUTES
- Category: DINNER | LAMB
- Method: BAKED
- Cuisine: MEDITERRANEAN INSPIRED
Frequently Asked Questions
Is lamb shoulder tender?
Yes! Lamb shoulder becomes incredibly tender when roasted low and slow, especially when rested properly.
Can I make this ahead?
Absolutely. Roast the lamb earlier in the day, then gently rewarm covered at 300°F before serving.
Can I use a boneless lamb shoulder?
Yes—reduce cooking time slightly and monitor internal temperature closely.
What internal temperature is best?
135°F for medium-rare, 145°F for medium.
Final Thoughts
This Garlic Herb Roasted Lamb Shoulder is the kind of recipe that feels special without being complicated. It’s bold, rustic, comforting, and perfect for gatherings where you want something impressive but approachable. If you love cozy dinners with elevated flavors, this one belongs in your rotation.
