01 -
Dice the sweet onions finely. Add them to a cast iron skillet over medium heat (350°F) with avocado oil and butter. Cook for 45 minutes, stirring every 3-5 minutes until caramelized.
02 -
Increase heat to 400°F. Stir onions continuously for 12-15 minutes. Add beef broth, Worcestershire sauce, red cooking wine, and balsamic glaze. Stir until it becomes a jam. Remove to a warming container.
03 -
Portion ground chuck into ¼-pound square-shaped patties to fit the buns. Refrigerate for 20 minutes.
04 -
Cook ½ pound of bacon on the griddle. Clean the griddle slightly, leaving some bacon grease.
05 -
In a mixing bowl, whisk together mayo, ketchup, mustard, sweet relish, and sriracha.
06 -
Remove patties from the fridge. Season one side with kosher salt. Cook on a hot griddle (450-500°F), seasoned side down, for 4 minutes. Season the exposed side with kosher salt, add mustard, and flip. Cook another 3 minutes. Top each patty with two slices of American cheese.
07 -
Toast the Texas toast bread on the griddle's indirect side while patties finish cooking.
08 -
Layer animal sauce on the bottom slice of bread, followed by a slice of Monteray Jack cheese, one patty, crispy bacon, another patty, and the caramelized onion jam. Top with the second slice of toasted bread.
09 -
Serve and enjoy with family and friends!