To prepare the sauce, process the sauce ingredients (Greek yogurt, mint, lemon juice, garlic, salt, and pepper) in your food processor for a few seconds until combined. Set aside.
Form the patties:
In a medium bowl, combine the burger ingredients (ground lamb, garlic, salt, pepper, ground cumin, and chopped cilantro).
Form four patties, 4 ounces each, 3 inches in diameter and ½ inch thick. Alternatively, form the mixture into two half-pound patties, as shown in the video.
Using your thumb, make a shallow dimple in the center of each patty to help them retain their shape while cooking.
Grilling Instructions:
Preheat your grill to medium-high heat. I like to use a dual-contact electric grill, but any grill will work, including a gas grill or a stovetop grill pan. Lightly spray or brush the grill with oil.
Grill the burgers to your desired level of doneness. For medium doneness, grill for about 5 minutes on a dual-contact grill, or 4-5 minutes per side if using a regular grill or a grill pan.
Pan-Frying Instructions:
Heat a well-seasoned cast-iron skillet over medium heat for about 3 minutes.
Add the patties and cook them until golden brown and cooked through, about 5 minutes per side.
Serve:
Serve the burgers immediately, topped with the yogurt sauce.
Video
Notes
If using any salt other than Diamond Crystal Kosher Salt, including Morton kosher salt, use half the amount listed.
I grill these burgers on a dual-contact indoor grill, but you can use any grill you like, including a gas grill or a stovetop grill pan. When I pan-fry them, I use a well-seasoned cast-iron skillet. A heavy-bottomed, high-quality nonstick skillet will also work. Stainless steel is fine, but add plenty of oil to coat the bottom, or the burgers might stick.
The CDC recommends cooking ground meat to an internal temperature of 160°F.
In addition to or instead of yogurt sauce, you can top these burgers with tahini sauce or harissa (a spicy Middle Eastern sauce).
You can keep the leftovers in an airtight container in the fridge for 3-4 days. Reheat them gently in the microwave at 50% power.
You can freeze the leftovers for up to three months, but you should only freeze the burgers, not the yogurt sauce.