Roast Leg of Lamb · Lemon-Herb

Lemon-Herb Roast Leg of Lamb

A boneless leg of lamb rubbed with garlic, rosemary, thyme, lemon and Dijon, seared in a hot oven and roasted until rosy and tender. An elegant Easter centerpiece that's easy to carve.

New, no ratings yet0 reviewsby Simmerbee Kitchen

Prep
20 min
Cook
1 hr 45 min
Total
2 hr 50 min
Serves
8
Level
Medium

Ingredients

  • Lamb
  • 1 boneless leg of lamb, 4 to 5 lb, tied with butcher's twine
  • Herb rub
  • 6 cloves garlic, minced
    Swaps for garlic

    Instead of garlic

    • Garlic powder: ⅛ tsp for each clove. Mellower and sweeter, with no bite.
    • Jarred minced garlic: ½ tsp for each clove. Milder and slightly sour from the preserving liquid.

    More for garlic

  • 2 tbsp fresh rosemary, finely chopped
    Swaps for fresh rosemary

    Instead of rosemary

    • Dried rosemary: 1 tsp dried for each 1 tbsp chopped fresh (a third as much). Strong and piney; the dried needles are sharp, so crush or chop them first.
    • Fresh thyme: The same amount. Milder and less piney.
    • Fresh sage: Half as much. Earthier and softer.

    More for rosemary

  • 1 tbsp fresh thyme leaves
    Swaps for fresh thyme leaves

    Instead of thyme

    • Dried thyme: 1 tsp dried for each 1 tbsp chopped fresh (a third as much). Earthier and a little less bright, but dried thyme holds up well in soups, stews and roasts.
    • Fresh oregano or marjoram: The same amount. Oregano is stronger; marjoram is sweeter and milder.
    • Fresh rosemary: Half as much. Piney and stronger.

    More for thyme

  • 1 tbsp lemon zest
    Swaps for lemon zest

    Instead of citrus zest

    • Another citrus zest: The same amount. A different citrus aroma; any of them brightens a dish.
    • Dried citrus peel: 1 tsp dried for each 1 tbsp fresh zest. Milder and a little bitter.
    • Lemon or orange extract: About ¼ tsp extract for each 1 tsp zest, to taste. Strong citrus flavor, no texture.

    More for citrus zest

  • 2 tbsp lemon juice
    Swaps for lemon juice

    Instead of lemon juice

    • Lime juice: The same amount. A different, more floral aroma; works almost everywhere.
    • Bottled lemon juice: The same amount. More sour and flatter; fine in cooking and baking, less bright in dressings and drinks.
    • White wine vinegar or white vinegar: Half as much. Sharper, with no citrus aroma.

    More for lemon juice

  • 3 tbsp olive oil
    Swaps for olive oil

    Instead of olive oil

    • Avocado oil or another neutral oil: The same amount. No olive flavor; avocado oil handles higher heat.
    • Butter: The same amount. Richer and nutty when browned.
    • A neutral oil + more seasoning: The same amount. Dressings lose the fruity, peppery note; a little extra lemon, garlic or mustard makes up for it.

    More for olive oil

  • 1 tbsp dijon mustard
    Swaps for dijon mustard

    Instead of mustard

    • Another prepared mustard: The same amount. Yellow is milder and more vinegary; Dijon is sharper; whole-grain adds texture; spicy brown is in between.
    • Dry mustard: 1 tsp dry mustard + 1 tsp water + 1 tsp white wine vinegar for each 1 tbsp. Sharper and less smooth.

    More for mustard

  • 2 tsp kosher salt
    Swaps for kosher salt

    Instead of salt

    • Table salt or fine sea salt: About half as much as Diamond Crystal kosher, about ¾ as much as Morton kosher. The same saltiness when measured this way.
    • Salt by weight: 1 tsp is about 6 grams of table salt, 5 grams of Morton kosher, 3 grams of Diamond Crystal kosher. The most reliable way to swap, especially in baking and brines.

    More for salt

  • 1 tsp black pepper

Cooking for a crowd? Pans, timing and salt for 12 to 50.

Missing something? Tap Swaps next to an ingredient, or see all substitutions.

Cook to 145°F inside (check with a thermometer).

Steps

  1. Mix all the herb rub ingredients in a small bowl.
  2. Pat the lamb dry with paper towels and rub the herb paste all over it, working it into any folds. Wash your hands.
  3. Let the lamb sit at room temperature while the oven heats. Don't leave it out longer than this.
    ⏱ Rest at room temp: 30 min
  4. Heat the oven to 450°F (230°C) with a rack in the middle. Set the lamb on the rack in a roasting pan, fat side up.
    450°F
  5. Roast (how to roast) Roast Cook food uncovered in a hot oven so the outside browns while the inside cooks through. 1. Heat the oven fully before the food goes in, usually 400 to 450°F for vegetables.2. Toss vegetables with oil and salt; dry and season meat.3. Spread everything out on a sheet pan or in a roasting pan with room around each piece.4. Roast, turning vegetables once halfway, until browned at the edges.5. For meat, check the center with a thermometer. Done when: Vegetables are browned at the edges and tender in the middle; meat reaches its safe temperature. Safety: Use dry oven mitts (wet ones pass heat straight through) and tilt hot pans away from you to avoid the fat and steam.How to roast meat and vegetables: mistakes to avoid
    at high heat to
    brown (how to brown) Brown Cook food in a hot pan until its surface turns brown, which adds rich, roasted flavor. 1. Pat the food dry; for ground meat, let the pan get hot first.2. Add a little oil and spread the food in one layer.3. Leave it alone for a few minutes so the bottom browns, then turn or break it up.4. Work in batches if it won't fit in one layer.5. Pour off extra fat if the recipe says to. Done when: Most surfaces are brown, not gray, and the bottom of the pan has browned bits (they are flavor, not burn). Safety: Hot oil spatters: dry the food first, lay it in the pan moving away from you, and keep a lid nearby. Never put water on an oil fire; slide the lid over it and turn off the heat. Browned outside doesn't mean cooked inside: ground beef needs 160°F, poultry 165°F.How to brown meat and vegetables: mistakes to avoid
    the outside.
    450°F⏱ Sear at 450°F: 15 min
  6. Lower the oven to 350°F (175°C) without opening the door and keep roasting. Start checking the temperature in the thickest part after 60 minutes.
    350°F⏱ Roast at 350°F: 1 hr
  7. Keep roasting, checking every 10 minutes, until the center reads 145°F (63°C), which is medium and the safe temperature for lamb.
    350°F⏱ Check again: 20 min
  8. Move the lamb to a cutting board, tent loosely with foil and
    rest (how to rest) Rest Leave cooked meat, baked goods or dough alone for a while before you cut, slice or shape it. 1. Move meat to a board or plate as soon as it is done (a few degrees shy of target for big roasts; it keeps rising).2. Tent it loosely with foil if the kitchen is cool.3. Rest steaks and chops 5 minutes, roasts 15 to 20, a turkey 30.4. For dough, cover it so it doesn't dry out while it relaxes. Done when: Meat juices stay in when you slice; dough rolls out without springing back. Safety: Rest at room temperature for under an hour, then refrigerate leftovers within 2 hours of cooking.How to rest meat and dough: mistakes to avoid
    so the juices settle.
    ⏱ Rest: 15 min
  9. Snip off the twine and
    slice (how to slice) Slice Cut food into flat pieces of the same thickness. 1. Give round food a flat side to sit on.2. Hold it with your fingertips curled under.3. Cut with long strokes, pushing the knife forward and down rather than straight down.4. Move your guiding hand back the same distance each time so every slice matches. Done when: The slices are even. For meat, slicing across the grain (across the lines of muscle) gives the tenderest bite. Safety: Keep the fingertips of your guiding hand curled under, knuckles toward the blade, and set the board on a damp towel so it can't slide. Slice hot roasts on a board with a groove for the juices.How to slice evenly: mistakes to avoid
    the lamb across the grain about 1/4 inch thick. Spoon the pan juices over the slices.

Tap an underlined word for how to do it, or see all techniques.

Tips

  • A bone-in leg takes longer: plan on about 20 to 25 minutes per pound at 350°F and always go by the thermometer.
  • Serve with roasted potatoes tossed in the pan drippings for the last 30 minutes of cooking.

Storage

Refrigerate within 2 hours, up to 4 days. Leftovers are great in pitas with tzatziki.

Make ahead

Rub the lamb with the herb paste up to 24 hours ahead; cover and refrigerate.

Quick answers

Can I make it ahead?

Rub the lamb with the herb paste up to 24 hours ahead.

What can I swap?
  • Instead of garlic: Garlic powder, ⅛ tsp for each clove.
  • Instead of rosemary: Dried rosemary.

Answered from this recipe's own storage, make-ahead and swap notes.

Estimated nutrition per serving

Calories
640
Protein
46 g
Carbohydrates
2 g
Fiber
0 g
Sugars
0 g
Fat
49 g
Saturated fat
20 g
Sodium
600 mg

Whole recipe, 8 servings: about 5,110 calories.

Estimate from USDA FoodData Central; not medical or dietary advice. Based on 10 of 10 ingredients.

How we estimate

We add up USDA FoodData Central values for each measured ingredient as written and divide by the recipe's 8 servings, so changing the servings or units here doesn't change a serving. Brands, swaps, trimming and cooking all change the real numbers.

Goes well with

Picked by our pairing rules: the same kind of kitchen, room in the oven and on the stove, ready in time, and a balance of starch, vegetables and richness.

  • Side Classic Parsley Tabbouleh 45 min Both Mediterranean. No cooking: make it while the main cooks. Ready in 45 min, inside the main's 2 hr 50 min.
  • Side Classic Greek Village Salad 15 min Both Mediterranean. No cooking: make it while the main cooks. Ready in 15 min, inside the main's 2 hr 50 min.
  • Dessert Crumb-Topped Apple Pie 5 hr 55 min Light and fruity after a rich main. Make it ahead, so it's ready when dinner is.

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Cleanup score 4/5 (easy cleanup): 2 things to wash, roasting pan, mixing bowl.

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