*INGREDIENTS: °1½ pounds ground beef °1 tsp kosher salt °½ tsp ground black pepper °12 tranches sourdough bread °½ c secret sauce°3 Vidalia onions, thinly slice °6 slice Cheddar cheese °8 tsp unsalted butter +Secret sauce: °¼ c Dijon mustard °¼ c mayonnaise °1 tsp barbecue sauce °½ tsp hot sauce In bowl, combine mustard, mayonnaise, barbecue sauce & hot sauce. Store, covered, in the refrigerator for up to 3 days
*DIRECTIONS: In bowl, blend ground beef,, salt / pepper. Shape ground beef to 6 oval patties. In a medium cast iron skillet, melt 2 tablespoons butter over medium heat. Add the onion. Cook, stirring occasionally, until the onion is tender and golden, about 35 minutes.
In a large cast iron skillet, cook the patties over medium-high heat until golden brown and cooked through, about 2 minutes per side. Remove skillet from heat. Removing patties to skillet; wipe out skillet.
In a large cast iron skillet, cook the patties over medium-high heat until golden brown and cooked through, about 2 minutes per side. Remove skillet from heat. Removing patties to skillet; wipe out skillet.
