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thinly sliced leg of lamb roast with mustard and marmite glaze in a white serving dish

Marmite & Mustard Leg of Lamb with Garlic and Rosemary

This simple roast comes together with just a handful of ingredients and very minimal prep. Make this delicious leg of lamb for your holiday table and watch your family scarf it down!
4.60 from 5 votes
Prep Time 10 minutes
Cook Time 1 hour 45 minutes
Resting Time 15 minutes
Total Time 2 hours 10 minutes
Course Dinner, Main Course
Cuisine British, French, Fusion
Servings 12
Calories 189 kcal

Ingredients
  

  • 5 lb Leg of Lamb or larger if you need
  • 10 cloves Garlic sliced
  • ¼ C Marmite
  • ¼ C Whole Grain Mustard
  • 5-6 sprigs Fresh Rosemary
  • 1 ¼ C White Wine
  • Kosher Salt and Pepper to taste

Instructions
 

  • Preheat oven to 300F. Trim excess fat from roast (leave a thin layer on top), then pat dry with a paper towel.
  • Puncture several dozen times with paring knife, going about ¼ inch deep. Slide slices of garlic into holes.
  • Sprinkle all over (top and bottom) with salt and pepper. Insert a few sprigs of rosemary under the roast before wrapping it back into roast shape.
  • Mix together Marmite and mustard in a bowl. Spread all over the top of the roast. Pour wine around base of roasting pan and sprinkle in last few rosemary sprigs.
  • Roast in 300F oven for an hour, then check the temperature with a meat thermometer. It should register at least 145F before removing it from the oven. Each time you check, baste the roast with the wine and juices. Our roast took about 2 hours.
  • Rest roast by tenting with foil on a cutting board for at least 15 minutes. In the meantime, reduce wine and drippings by simmering over medium-low heat.
  • Thinly slice roast on the bias and serve with reduced jus. Enjoy!

Notes

  • Don't marinate meat ahead of time. Leg of lamb will end up getting overly salty and tough if seasoned too far ahead of time.
  • 145F will yield a nice medium-rare roast. If you prefer your roast done closer to medium or well, continue roasting until thermometer hits 150-160F depending on your preferences.

Nutrition

Calories: 189kcalCarbohydrates: 3gProtein: 26gFat: 6gSaturated Fat: 2gCholesterol: 76mgSodium: 280mgPotassium: 483mgFiber: 1gSugar: 1gVitamin C: 1mgCalcium: 20mgIron: 3mg
Keyword Special Occasion
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