Cig Oen Rhost

Name: Cig Oen Rhost
Prep time: 20 min
Cook time: 90 min
Total time: 110 min
Yield: 8 servings
Cuisine: Welsh
Ingredients: 2kg leg of Welsh lamb, bone-in; 6 cloves garlic, sliced into slivers; 4 sprigs fresh rosemary; 2 tbsp olive oil; Salt and black pepper; For mint sauce: large bunch fresh mint, 2 tbsp caster sugar, 4 tbsp white wine vinegar, 2 tbsp boiling water

Cig Oen Rhost (keeg OYN rosht)

Roast Welsh Lamb

⏱ Prep Time 20 min

📈 Difficulty Medium

👥 Servings

🔥 Calories 373 kcal

A magnificent roast leg of Welsh lamb studded with garlic and rosemary, cooked to blushing pink perfection and served with mint sauce.

Nutrition & Info

Protein 35.0g

Carbs 2.0g

Fat 25.0g

Protein Carbs Fat

Dietary

gluten-free nut-free dairy-free

Equipment Needed

roasting tin meat thermometer carving knife resting board

Presentation Guide

Vessel: large carving board

Garnishes: fresh rosemary, roast garlic

Accompaniments: mint sauce, roast potatoes, seasonal vegetables

Ingredients

2kg leg of Welsh lamb, bone-in
6 cloves garlic, sliced into slivers
4 sprigs fresh rosemary
2 tbsp olive oil
Salt and black pepper
For mint sauce: large bunch fresh mint, 2 tbsp caster sugar, 4 tbsp white wine vinegar, 2 tbsp boiling water

Instructions

1
Remove lamb from fridge 1 hour before cooking. Preheat oven to 220C (425F).
2
Make deep incisions all over the lamb with a sharp knife. Push garlic slivers and small rosemary sprigs into each cut.
3
Rub the lamb with olive oil, season generously with salt and pepper. Place in a roasting tin.
4
Roast at 220C for 20 min to brown, then reduce to 180C (350F). Cook for 25 min per 500g for medium (or use a thermometer: 57C for medium-rare).
5
Rest the lamb loosely covered in foil for at least 20 min before carving.
6
For mint sauce: finely chop mint, combine with sugar, pour over boiling water, stir to dissolve, add vinegar. Serve alongside carved lamb.

💡

Did You Know?

Welsh lamb is prized worldwide because the sheep graze on wild herbs, heather, and mountain grasses, which naturally flavour the meat.

Chef's Notes

Equipment Tips

roasting tin
meat thermometer
carving knife
resting board

Garnishing

fresh rosemary, roast garlic

Accompaniments

mint sauce, roast potatoes, seasonal vegetables

The Story Behind Cig Oen Rhost

Wales has been sheep country for millennia, with the mountainous terrain perfectly suited to grazing. Welsh lamb, particularly salt marsh lamb from the Gower Peninsula, is considered among the finest in the world. The Sunday roast lamb dinner is a cornerstone of Welsh family life, always accompanied by homemade mint sauce.

🕐 Traditionally enjoyed sunday lunch 📜 Origins: Centuries old

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