Black Truffle Burger

Ingredients

• 1 1/2 pounds ground sirloin
• 3 ounces black truffle butter
• 1 teaspoon salt
• 4 slices pancetta
• 4 ounces Taleggio cheese, sliced
• 4 brioche buns, split in half and toasted
• 1 heirloom tomato, sliced
• 8 radicchio leaves

Directions

1. Heat the oven to 350 degrees F. Add the beef, truffle butter, and salt to a large bowl, then gently work them together with a fork or your hands, stopping as soon as the butter is barely blended in. Shape the mixture into 4 patties, then drape one slice of pancetta across the top of each one.
2. Set a large ovenproof skillet, ideally cast iron, over medium-high heat and warm it until the pan is hot. Add the burgers with the pancetta facing down, then cook them for about 4 minutes on each side for rare, or 5 minutes on each side for medium-rare.
3. Top the burgers with the cheese, then transfer the skillet to the oven. Bake until the cheese has melted, about 5 minutes.
4. Set each burger on a bottom bun half. Add the tomato slices and radicchio, then finish with the top bun halves.