Lamb leg can be one of the most delicious meat parts if prepared right. It’s not only about cooking methods but also carefully selected seasoning. One thing is for sure, lamb loves rosemary and garlic, and that love goes both ways, and these two ingredients will help you get the best out of lamb leg. Generously seasoned with salt, pepper and butter, it needs only one thing to become an Irish classic – potatoes.

Traditional Irish mushed potatoes, or champ potatoes, as it’s referred on an “emerald isle” is a perfect way to complete this recipe. Sour cream and scallions add a delicious note to a, sometimes boring, usual mashed potatoes.


Irish Lamb With Champ Potatoes

Juicy lamb with a perfect side dish.
5 from 1 vote
Prep Time 20 minutes
Cook Time 1 minute
Total Time 21 minutes
Course Christmas, Dinner, Holiday Recipes, Main Dish, Roast
Cuisine Irish
Servings 4 servings


  • 1 1/2 lb lamb leg scored
  • 4 garlic cloves
  • 2 tsp rosemary dry
  • 1/4 cup butter
  • salt and pepper to taste
  • 1 lb potatoes cubed
  • 2 tbsp scallions green part, sliced
  • 1 tbsp butter
  • 1/4 cup sour cream


  • Preheat oven to 356F (180C).
  • Place the leg of lamb on a roasting pan and rub the salt and pepper all over the leg.
  • Push the garlic cloves and rosemary into the cuts in the meat and smear the butter all over it.
  • Cover in tin foil and cook the lamb for about 1 hour 30 minutes but take the foil off in the last 30 minutes to crisp up the skin.
  • In the meantime, cut the potatoes into cubes and slice the green part of scallions.
  • Let potatoes to cook in salted water for 15-20 minutes and after they are completely cooked, drain the water.
  • Add butter to the potatoes and mash everything well. Add salt and sour cream and the add sliced scallions. Mix gently.
  • Serve lamb with champ potatoes and salad.
  • Enjoy!



You can score the meat yourself, or you can ask your butcher to do that for you. We had an already scored lamb leg, so if you want to do that yourself, add a couple of more minutes to the overall time needed for this recipe.
We won't add any additional options for this recipe. These ingredients are easy to find, so just follow the instruction and you'll get a delicious meal every time.
Keyword Butter, Dinner, Garlic, Lamb, Potato, Roast, Scallions, Sour cream
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