Slow-Roasted Lamb Shoulder with Costack Meat Seasoning (UK Sunday Lunch)
Costack Spices
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The Sunday lamb that earns 4 hours of patience
Lamb shoulder is the most forgiving cut on the table. You can't overcook it. You can't undercook it (within reason). You can't dry it out. Slow-roast it covered for 4 hours and the meat pulls apart with a fork. Done properly with the right seasoning, it's the centrepiece of the most generous Sunday lunch most British families will eat all year.
This recipe uses Costack Meat Seasoning & BBQ Rub. Heavy smoked paprika, herbs, savory notes. Built for slow cooking. Penetrates the meat over the long cook. The seasoning is the difference between tender-but-bland and tender-and-restaurant-grade.
Mint sauce: chopped fresh mint + white wine vinegar + sugar
Redcurrant jelly: the British classic
Crusty bread: to mop up the lamb juices
Tabbouleh or couscous: for a Mediterranean lean
Pro tips
1. Season 24 hours ahead
Overnight in the fridge is the difference between OK lamb and excellent lamb.
2. Don't lift the foil during the first 3 hours
The steam is doing the work. Every time you peek, you lose heat.
3. Save the pan juices
The liquid at the bottom of the roasting tin after cooking is pure gold. Strain it. Skim the fat. Use as gravy.
4. Wine vs no wine
The wine evaporates during the long cook, leaving only flavour. If avoiding alcohol entirely, use beef stock + 1 tbsp balsamic vinegar.
FAQs
How long do I cook a 2kg lamb shoulder?
3 hours covered at 160C + 1 hour uncovered at 200C = 4 hours total. Internal temperature should be 90-95C at the bone.
Can I cook lamb shoulder in a slow cooker?
Yes. Brown the lamb first in a hot pan. Transfer to slow cooker with all aromatics and 300ml stock. 8 hours on low.
What's the difference between lamb shoulder and lamb leg?
Shoulder has more fat and connective tissue, ideal for slow roasting (pulls apart). Leg is leaner, ideal for medium-rare roasting (carves into slices).
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