This is the burger everyone will be talking about and wanting the recipe for. It’s OK, you can demure and tell them it’s your secret recipe—we won’t tell. The mayo-based “special sauce” gets heat and sweetness from red pepper jelly; a briny edge from dill pickle relish; and a little lemon, onion, and garlic to balance it all out. Buffalo (also called bison) has a sweet and rich flavor and is a low-fat, nutrient-dense food. We mix in rich and flavorful brisket to maximize this burger’s taste and juiciness. Pressing each patty once it hits the hot pan helps develop a good sear that will lock in the burger juices.
How to Make It
Whisk together mayonnaise, jelly, relish, onion, lemon juice, garlic powder, and 1/4 teaspoon salt.
Using your hands, gently mix buffalo, brisket, and Worcestershire sauce in a medium bowl just until combined. Gently divide mixture into 16 portions. Sprinkle evenly with black pepper and 1 teaspoon salt.
Heat a large cast-iron skillet over high. Coat hot pan with cooking spray. Add 8 meat portions to pan. Using a flat heatproof spatula, press each portion into a 4-inch patty (it's OK if the edges are a little craggy). Cook until burger edges are very crispy and patties are cooked through, 3 to 4 minutes per side. Transfer to a plate; cover loosely with aluminum foil to keep warm. Repeat procedure with remaining 8 meat portions.
Wipe skillet with a paper towel. Add 1 teaspoon oil to pan; heat over medium-high. Add radicchio; cook until lightly charred and crisp-tender, 2 to 3 minutes per side. Transfer to a cutting board, and roughly chop. Toss together radicchio, vinegar, remaining 1 teaspoon oil, and remaining 1/4 teaspoon salt in a bowl.
Spread about 1 teaspoon mayonnaise mixture on bottom halves of buns. Top evenly with meat patties and radicchio. Cover with top halves of buns.