In a large bowl, gently combine the ground beef chuck, ground lamb, cooled onion, Worcestershire sauce, salt, and freshly ground black pepper. Be careful not to overmix. Divide the mixture evenly into five portions. With a gentle hand, form each portion into a large burger patty. Press a shallow indentation in the center of each patty with your thumb. This helps prevent the burgers from bulging as they cook. Chill the patties thoroughly in the refrigerator for at least 4 hours, or up to 8 hours. Before grilling, allow the burgers to sit at room temperature for about 20-30 minutes to ensure even cooking.
Marcel Labadie
Jun 29, 2025I used caramelized onions and it took these burgers to the next level!
Delphine Durgan
Jun 27, 2025The indentation trick works! My burgers stayed flat on the grill.
Gerson Huel
Jun 27, 2025So easy to follow and the burgers were a huge hit at my BBQ.
Duane Breitenberg
Jun 26, 2025I added some smoked paprika to the mix and it was amazing!
Christa Skiles
Jun 21, 2025My family raved about these burgers. Will definitely make again!
Hanna Hagenes
Jun 11, 2025These are the best burgers I've ever made! The lamb adds a wonderful flavor.