Grilled Rosemary Garlic Leg of Lamb for Easter Dinner

A smoky, charred take on the classic Easter roast, this grilled leg of lamb is rubbed with a bright rosemary-garlic marinade and cooked over two-zone heat for juicy, medium-rare slices. Faster than a traditional oven roast, it delivers the same celebratory flavor with a crisp, grilled crust.

0.0(0 reviews)
Prep: 20m · Cook: 55m · Total75 mins
DifficultyMedium
Serves6
Grilled Rosemary Garlic Leg of Lamb for Easter Dinner
Jake

Jake's note

"This grilled leg is perfect for Easter or any springtime gathering — it gives you roast-like richness with a welcome smoky char. Home cooks will love how the simple rosemary-garlic rub transforms a classic into a faster, grill-friendly centerpiece."

Grilled Rosemary Garlic Leg of Lamb for Easter Dinner

This grilled rosemary-garlic leg of lamb takes the traditional Easter centerpiece and gives it a bright, slightly smoky twist that still reads celebratory on the table. The rosemary and garlic marry with lemon and Dijon to cut through the lamb’s richness, while a quick, high-heat sear builds the browned, slightly charred crust we crave without overcooking the interior. Using a bone-in leg keeps the slices juicy and adds flavor as the meat finishes over indirect heat, so you get clean medium-rare slices with an herb-forward punch.

What makes this version work is the balance of technique and timing: a short marinade to impart flavor without chemically “cooking” the surface, a purposeful crosshatch on the fat to render and crisp evenly, then moving from a hot sear to lower indirect heat so you don’t lose the pink, tender center. It’s faster than a slow oven roast but delivers all the hallmarks of a holiday roast—slices that look beautiful on a platter, pan juices to spoon over each serving, and aromatics that fill the yard as the grill lid lifts. This recipe suits host-cooks who want an impressive roast with predictable results and minimal fuss.

Plan your timing

5:37 pm5:50 pmMake the rosemary-garlic marinade and prep the lamb
5:50 pm6:03 pmMarinate and come to room temperature
6:03 pm6:16 pmPrepare the grill for two-zone cooking
6:16 pm6:29 pmSear the lamb over direct heat
6:29 pm6:42 pmFinish over indirect heat to desired doneness
6:42 pm6:55 pmRest, carve, and serve
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Ingredients

Yield
6

Instructions

Make the rosemary-garlic marinade and prep the lamb

Combine olive oil, minced garlic, chopped rosemary, lemon zest and juice, Dijon, salt, and pepper in a bowl and whisk until emulsified. Pat the leg of lamb dry, score any thick fat in a shallow crosshatch, then rub the marinade all over the meat, working it into the scored areas.

For this step

  • 4 lbBone-in leg of lamb
  • 0.25 cupExtra-virgin olive oil
  • 6 clovesGarlic, minced (about 6 cloves)
  • 3 tbspFresh rosemary, finely chopped
  • 1 itemLemon (zest and juice)
  • 2 tbspDijon mustard
  • 2 tspKosher salt
  • 1 tspFreshly ground black pepper
Make the rosemary-garlic marinade and prep the lamb

Marinate and come to room temperature

Cover the lamb and refrigerate for at least 2 hours or up to overnight to let the flavors penetrate. Remove from the fridge 45–60 minutes before grilling so the meat comes to room temperature for more even cooking.
Marinate and come to room temperature

Prepare the grill for two-zone cooking

Set up a gas or charcoal grill with a direct (hot) zone and an indirect (cooler) zone; target a hot side around medium-high (450–500°F/230–260°C) and an indirect side around 325–350°F (160–175°C). Clean and oil the grates well to prevent sticking, and have a meat thermometer ready.
Prepare the grill for two-zone cooking

Sear the lamb over direct heat

Place the lamb fat-side down over the direct heat and sear for 3–4 minutes per side, rotating to develop a deep brown, slightly charred crust without burning. Use tongs (not a fork) to turn the lamb so you preserve juices while building color on all sides.
Sear the lamb over direct heat

Finish over indirect heat to desired doneness

Move the lamb to the indirect zone, cover the grill, and cook until an instant-read thermometer reads 125–130°F (52–54°C) for medium-rare or 135°F (57°C) for medium; this generally takes 35–45 minutes for a 4 lb leg depending on grill temperature. Check the temperature in the thickest part near the bone and avoid touching bone for accurate readings.
Finish over indirect heat to desired doneness

Rest, carve, and serve

Transfer the lamb to a cutting board, tent loosely with foil, and rest 15–20 minutes to let juices redistribute; the internal temperature will rise about 5–10°F during resting. Carve thinly across the grain and serve with pan juices or lemon wedges for brightness.

Tips from the kitchen

Score the fat properly

Make shallow crosshatch cuts through the fat only so the marinade and heat render the fat without cutting into the meat itself.

Use a probe thermometer

Insert it into the thickest part near the bone and watch for 125–130°F for medium-rare, remembering carryover will raise it another 5–10°F while resting.

Protect garlic from burning

Smear the marinade on before searing but avoid leaving excessive minced garlic directly on the hot grate when searing to prevent bitter char.

Let meat rest fully

Tent loosely with foil for 15–20 minutes to let juices redistribute; carving too soon squeezes flavorful juices onto the board.

Two-zone grill control

Calibrate your hot and indirect zones before you start so you can sear quickly and move the leg away to finish at a steady lower temperature.

Variations & substitutions

Mint-Dijon Finish

Mix chopped fresh mint and a touch more Dijon with olive oil and spoon over slices right before serving for a classic, bright contrast.

Mediterranean Herb Crust

Add chopped oregano and thyme to the marinade and press a thin layer of panko mixed with grated lemon zest onto the surface before searing for extra texture.

Citrus-Honey Twist

Swap half the lemon for orange juice and stir a tablespoon of honey into the marinade for a sweeter, glazed flavor that caramelizes while searing.

Boneless Leg Adaptation

Use a boneless leg but reduce indirect cooking time by about 10–15 minutes and check temperature in the thickest part for doneness.

Storage & make-ahead

Store leftover sliced lamb in an airtight container in the refrigerator for up to 3–4 days; keep juices and a little fat with the meat to prevent drying. For longer storage, freeze tightly wrapped slices for up to 3 months. Reheat gently in a 275°F oven covered with foil until warmed through (about 10–15 minutes) or slice thin and warm briefly in a hot skillet with a splash of broth to preserve tenderness.

What to serve with it

Serve thin slices across the grain with spooned pan juices or a bright mint chimichurri to cut the richness. Pair with roasted new potatoes tossed in rosemary, charred asparagus or spring peas, and a simple lemony salad; for wine, choose a medium-bodied red like Grenache or a structured rosé to complement the herb and char flavors. Present the bone-in roast on a wooden board with lemon wedges for guests to squeeze at the table.

Frequently asked questions

Can I marinate the lamb overnight?

Yes—overnight marinating (up to 18 hours) deepens the herb and garlic flavor, but don’t marinate much longer or the lemon can start to change the texture of the surface.

How do I know when it’s done without a thermometer?

While I strongly recommend a thermometer, you can press the meat to compare firmness—soft equals rare, slightly springy gives medium-rare—but this is less reliable, especially with bone-in pieces.

What if my garlic blackens while searing?

If bits of garlic char, scrape them off and continue searing the meat itself; bitter burnt garlic won’t be pleasant, so keep the sear brief and focused on the fat and exterior, not the minced garlic.

Can I add smoke for more flavor?

Absolutely—add a handful of soaked wood chips to a gas smoker box or push coals to one side in a charcoal grill to introduce mild smoke; keep it subtle so it doesn’t overpower the rosemary and lemon.

Should I carve before or after resting?

Always rest first—carving immediately will bleed juices onto the board and yield drier slices; after a 15–20 minute rest, carve thinly across the grain for best tenderness.

Jake

About the author

Jake

Hello, I'm Jake. I started this recipe site with the idea that I hated recipe websites that overwhelm you with long stories and ads just to see plain content that's not helpful. My goal is to provide you with quality recipes, simple ideas and a fun cooking experience. There's lots of fun things to cook, and I think as you browse the site you'll find that TopShelf.Recipes is the place for quality recipes on the web.

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Ingredients

6 servings
Step 1: Make the rosemary-garlic marinade and prep the lamb
  • Bone-in leg of lamb4 lb
  • Extra-virgin olive oil0.25 cup
  • Garlic, minced (about 6 cloves)6 cloves
  • Fresh rosemary, finely chopped3 tbsp
  • Lemon (zest and juice)1 item
  • Dijon mustard2 tbsp
  • Kosher salt2 tsp
  • Freshly ground black pepper1 tsp

Nutrition Facts

Per serving: about 6 oz cooked (330g)

Calories761
Total Fat58.8g
Saturated Fat20g
Trans Fat2.2g
Polyunsaturated Fat9.3g
Monounsaturated Fat16.9g
Total Carbohydrates1.6g
Dietary Fiber0.3g
Total Sugars0.2g
Protein56.8g

Nutrition values are estimated from USDA ingredient data and may vary based on preparation, brands, and portion sizes. Values are provided for informational purposes only.

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Grilled Rosemary Garlic Leg of Lamb for Easter Dinner

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