Lamb Roast with Port Wine Sauce Recipe

Lamb Roast with Port Wine Sauce smells good, looks good, and is good!  Your family and friends will absolutely love this lamb roast.  The port wine reduction sauce really complements lamb!  This Lamb Roast recipe is definitely a keeper!

Believe me, you will look for an excuse to make this delicious Lamb Roast with Port Wine Sauce again and again.  You will be purchasing a boneless leg of lamb for this recipe.


Lamb Roast with Port Sauce


Learn How To Cook Perfect Boneless Leg of Lamb.

Please check out my Lamb Roast with Port Wine Sauce dinner menu which includes this wonderful Lamb with Port Wine Sauce.


Lamb Roast with Port Wine Sauce Recipe:
Prep Time
1 hr
Cook Time
2 hrs
Total Time
3 hrs
Course: Main Course
Cuisine: American
Keyword: Lamb Roast with Port Wine Sauce Recipe
Servings: 8 to 10 servings
Lamb Roast:
  • 1 (4 to 5-pound) boneless leg of lamb, rolled, tied, and trimmed of excess fat
  • 4 to 6 cloves garlic, cut in half
  • 4 to 5 sprigs fresh rosemary
  • Coarse salt and freshly-ground black pepper to taste
  • 1 cup ruby port wine*
  • Fresh rosemary sprigs (for garnish)
Port Wine Sauce:
  • 1 cup ruby port wine*
  • 1 tablespoon butter
Lamb Roast with Port Wine Sauce Instructions:
  1. To prepare leg of lamb, cut 1-inch slits on all sides of the lamb.  Insert garlic halves into the slits and weave rosemary sprigs in the string used to tie the lamb (some butchers may use a mesh-like material).  Sprinkle with salt and pepper.

  2. Place lamb into a deep baking pan; pour port wine over lamb.  Cover and refrigerate at least 1 hour or overnight (best overnight).

  3. Preheat oven to 325 degrees F.

  4. Remove lamb from marinade and place onto a rack in a shallow baking pan; place in the lower half of the oven.  Bake, uncovered, approximately 2 hours or until meat thermometer registers 120 to 130 degrees F. or desired temperature (see below); basting with marinade very 15 minutes.

  5. Rare - 120 degrees F.
    Medium Rare - 125 degrees F.
    Medium - 130 degrees F.

  6. Remove lamb from oven and transfer onto a cutting board; let stand 15 minutes before carving. During this time the meat continues to cook (meat temperature will rise 5 to 10 degrees after it is removed from the oven).

  7. To serve, transfer sliced lamb onto a serving platter and drizzle Port Sauce over meat.  Garnish with fresh sprigs of rosemary.

  8. Makes 8 to 10 servings.

Port Wine Sauce Instructions:
  1. Add wine to drippings in baking pan and heat over medium-high heat, scraping loose browned bits on the bottom of the baking pan.  Bring to a boil, stirring frequently until sauce is reduced to the consistency of heavy cream.  If it is reduced too much, use more port wine to make sauce the desired consistency.  Remove from heat.  Just before serving, whisk in butter until blended.

Recipe Notes

* I have substituted pinot noir wine with excellent results!


Thermapen Internal Temperature Cooking ChartI get many readers asking what cooking/meat thermometer that I prefer and use in my cooking and baking. I, personally, use the Thermapen Thermometer. Originally designed for professional use, the Super-Fast Thermapen Thermometer is used by chefs all over the world.  I only endorse a few products, on my web site, that I like and use regularly.

You can learn more or buy yours at: Super-Fast Thermapen Thermometer.

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