Cumin Crusted Leg of Lamb

The first time my cousin Maria suggested lamb tacos, I admit I was skeptical. But then that aroma hit mecumin, garlic, and roasting meat filling the entire houseand I knew we were onto something special. Now it is the one dish that disappears faster than anything else at our gatherings, even faster than my famous brisket.

Last spring, I made this for a crowd of eight people who swore they did not like lamb. By the time they reached their third tacos, they were asking when I would make it again. The combination of warm spiced meat and cool crunchy toppings just works in this way that feels unexpected but completely right.

Ingredients

• 1.2 kg boneless leg of lamb: Ask your butcher to trim and tie it for even cooking, or do it yourself with kitchen twine
• 2 tbsp ground cumin: Toast it briefly in a dry pan before rubbing to wake up those aromatic oils
• 1 tbsp smoked paprika: The smoked variety adds depth that regular paprika simply cannot match
• 1 tbsp coriander powder: Use freshly ground if you can, it makes a noticeable difference
• 2 tsp sea salt: Flaky salt works too, but adjust the amount as it is less dense
• 1 tsp freshly ground black pepper: Grind it right before you use it for maximum potency
• 4 cloves garlic, minced: Fresh garlic is non negotiable here, jarred garlic will not give you the same punch
• 2 tbsp olive oil: Extra virgin adds a nice fruity note that complements the lamb
• Zest of 1 lemon: Take care to zest only the yellow part, the white pith is bitter
• 8 small corn or flour tortillas: Warm them properly and they will not crack when you fold them
• 1 cup red cabbage, finely shredded: The crunch balances the tender lamb perfectly
• 1 ripe avocado, sliced: Wait to slice until the last minute so it does not brown
• 1/2 cup fresh cilantro, chopped: If you are one of those people who thinks cilantro tastes like soap, parsley works as a substitute
• 1/2 small red onion, thinly sliced: Soak the slices in cold water for 10 minutes to mellow the sharpness
• 1/2 cup Greek yogurt or sour cream: Full fat yogurt gives a richer tang, but low fat works too
• 1 lime, cut into wedges: Room temperature limes yield more juice than cold ones

Instructions

Preheat and prepare the rub:

Preheat your oven to 200°C (400°F). In a small bowl, mix the cumin, paprika, coriander, salt, pepper, garlic, olive oil, and lemon zest until you have a fragrant paste.

Season the lamb:

Pat the lamb completely dry with paper towels, then rub the spice paste all over, pressing it into the meat to ensure it sticks.

Start the roast:

Place the lamb in a roasting pan and roast at high heat for 40 minutes to develop that gorgeous crust we are after.

Finish cooking:

Reduce the oven temperature to 160°C (320°F) and continue roasting for 45 to 60 minutes, until the internal temperature hits 60°C (140°F) for medium rare.

Rest the meat:

Remove the lamb from the oven, cover loosely with foil, and let it rest for 15 minutesthis step is crucial for juicy meat.

Warm the tortillas:

While the lamb rests, warm your tortillas in a dry skillet for about 30 seconds per side or wrap them in foil and heat in the oven.

Slice against the grain:

Thinly slice the rested lamb against the grain, which keeps each bite tender rather than chewy.

Assemble and serve:

Build your tacos with cabbage, lamb, avocado, onion, a dollop of yogurt, and fresh cilantro. Squeeze lime over the top and eat immediately.

Save

My brother in law still talks about the night I served these, mostly because he went back for fourths and had to loosen his belt at the table. There is something about that combination of spices and fresh toppings that makes people forget table manners entirely.

Make It Your Own

I have tried this rub on pork shoulder with fantastic results, though the cooking time needs to be longer. The spice paste also works beautifully on roasted cauliflower for a vegetarian version that still feels substantial.

Serving Suggestions

A crisp green salad with a citrus vinaigrette cuts through the richness nicely. Roasted potatoes seasoned similarly to the lamb make the perfect side, and they cook happily alongside the meat.

Leftover Magic

The lamb makes incredible leftovers the next day, if you somehow have any remaining. I have turned it into breakfast hash with fried eggs, stuffed it into pita with hummus, and eaten it straight from the container at midnight.

• Wrap leftover lamb tightly and it keeps for up to four days in the refrigerator
• The spice paste can be made ahead and stored in the refrigerator for a week
• Freeze cooked lamb in portions for quick future taco nights

Save

These tacos have become my go to for feeding a crowd because they feel special enough for celebrations but casual enough that everyone relaxes and enjoys themselves. Hope they become a favorite in your house too.

Questions & Answers

→ What temperature should the lamb reach?

The lamb is done when the internal temperature reaches 60°C (140°F) for medium-rare. Use a meat thermometer to check accuracy.

→ Can I prepare this ahead of time?

Yes! Apply the spice rub several hours or overnight before cooking for deeper flavor. The roasted lamb can also be cooked a day in advance and gently reheated before slicing.

→ What other toppings work well?

Pickled onions, quick cucumber pickles, sliced jalapeños for heat, queso fresco, or a squeeze of fresh lime juice all complement the spiced lamb beautifully.

→ Can I use a different cut of meat?

Shoulder of lamb works well but needs longer cooking time. For a quicker option, use lamb steaks or chops—adjust cooking time to 20-30 minutes depending on thickness.

→ How do I slice the lamb properly?

Always slice against the grain for tender results. Let the meat rest at least 15 minutes after cooking so juices redistribute, making slicing easier and meat more succulent.