Smash Burger with Bacon Jam and Pepper Mayo

Preparation

• 1
  Cut the bacon into small pieces and slowly render it in a pan over medium heat. Once it's golden brown and crispy, drain the excess fat (leave about 1 tablespoon in the pan). Let it cool slightly.
• 2
  Finely dice the red onions, add them to the bacon, and sauté until golden brown for about 8–10 minutes. Stir in cane sugar, maple syrup, balsamic glaze, mustard, and a pinch of pepper. Add chipotle sauce as desired. Let the mixture simmer over low heat until it reaches a sticky, jam-like consistency (about 10–15 minutes). Add a splash of water if needed.
• 3
  Stir the mayonnaise smooth with the remaining pepper and Worcestershire sauce. Let it sit for at least 10 minutes for the flavors to combine optimally.
• 4
  Form the ground beef into 4 equally sized balls (approx. 95 g each). Heat a cast-iron pan or griddle very strongly. Place the meat balls onto the dry, hot surface and immediately press them flat (smash) with a sturdy spatula or burger press until they are about 1–1.5 cm thick. Fry for 2 minutes until a strong crust forms. Salt, pepper, flip, and immediately top each with a slice of cheddar. Let it melt. Toast the bun halves on the cut sides in a little butter until golden brown.
• 5
  Generously spread the bottom bun halves with pepper mayo. Place the meat patties with the melted cheese on top and spread 1–1.5 tablespoons of bacon jam on each. Also spread a little mayo on the top bun halves and assemble the burger.