Bull-Market Burger Recipe

• 18 paper-thin slices preserved black truffle (about 1/2 ounce)
• 1/4 cup shredded red winebraised short rib meat plus 2 tablespoons reserved braising juices
• 1 ounce foie gras
• 1 tablespoon minced carrot
• 1 tablespoon minced celery
• 1 tablespoon minced white onion
• 6 ounces ground sirloin
• 4 teaspoons Horseradish Mayonnaise
• 1 Parmesan Kaiser Roll, sliced in half and toasted
• 5 to 6 rings thinly sliced red onion
• 1 to 2 thin slices fresh tomato
• 1/3 cup packed frisee, cleaned and dried
• 1/2 tablespoon unsalted butter, at room temperature
• 6 pieces Tomato Confit

1. Heat the oven to 375 degrees F and arrange the rack in the middle.
2. In a small bowl, mix truffle slices with short rib meat until evenly combined; set aside.
3. Heat a medium frying pan over high heat until hot, about 4 minutes.
4. Add foie gras to the pan and sear until browned, about 15 to 20 seconds per side.
5. Set foie gras aside, reserving fat in the pan.
6. Reduce heat to low, add carrot, celery, and white onion to the pan, and cook until soft, about 1 minute.
7. Season with salt and freshly ground black pepper.
8. Add rib mixture and reserved braising juices, and stir until meat and vegetables are well coated.
9. Remove from heat and set aside.
10. Season sirloin well with salt and freshly ground black pepper.
11. Form into a tightly packed ball, then create an indentation about the size of a golf ball in the middle.
12. Fill the indentation with 2/3 of the rib mixture and top with foie gras.
13. Cover foie gras with remaining rib mixture, then enclose sirloin around the filling so mixture is completely encased.
14. Flatten burger slightly to form a thick patty.
15. Set a metal rack inside a baking sheet and place burger on top.
16. Roast for 15 minutes, or until an instant-read thermometer inserted in the middle of the patty reads 120 degrees F. Remove from the oven and assemble sandwich.
17. Spread 1/2 of the mayonnaise on the bottom bun, then layer it with red onion, tomato slices, frisee, and burger.
18. Top with butter and arrange tomato confit over that.
19. Spread remaining mayonnaise on top bun, and use to close burger.
20. Serve on a plate with a knife and fork.

paper, shredded red winebraised short, gras, carrot, celery, white onion, ground sirloin, horseradish mayonnaise, parmesan kaiser roll, rings, thin slices fresh tomato, unsalted butter, tomato

Taken from www.chowhound.com/recipes/bull-market-burger-11888 (may not work)