What guys burger

Ingredients

• 3 large, sweet onions
• 2 Tablespoons olive oil
• kosher salt and freshly ground black pepper, as needed
• 12 slices bacon
• 4 brioche buns, split
• 1/2 cup mayonnaise
• 2 Tablespoons Worcestershire sauce
• several grindings black pepper
• 8 slices American cheese
• 1 pound ground chuck
• Top your burger with thousand island dressing or any burger sauce 

Instructions

1. Slice the onions very thinly. 
2. Heat the olive oil in a large skillet over medium low heat. Add the onions and season with a bit of salt and pepper.
3. Cook over medium low to low heat, stirring occasionally, until soft and caramelized, about 45 minutes. Set aside but keep warm.
4. Cook the bacon until crispy-chewy. You don't want it totally crispy so it shatters when you bite it. Set aside, reserving the bacon fat.
5. Brush the cut sides of the brioche buns with a thin coating of bacon fat. Toast them, cut side down (or broil them, cut side up) until golden brown. Set aside.
6. Stir together the mayonnaise, Worcestershire sauce and black pepper (as much as you like). Set aside.
7. Divide the chuck into 8 2-oz patties and lightly roll each portion into a ball.
8. Heat your ungreased griddle over medium high heat until very hot, about 10 minutes.