01 -
Shape ground chuck into 150 g balls and refrigerate for 30 minutes to ensure firmness.
02 -
Using a mandoline slicer, cut onions into very thin slices. Blot dry and chill until required.
03 -
Fry turkey bacon in a non-stick pan over medium-high heat until crispy. Allow to cool and finely chop.
04 -
In a mixing bowl, stir together mayonnaise, ketchup, mustard, 225 g chopped turkey bacon, Worcestershire sauce, apple cider vinegar, all-purpose rub, and red pepper flakes. Mix until evenly combined and refrigerate.
05 -
Preheat griddle or frying pan over medium-high heat. Lightly coat the surface with avocado oil. Arrange meat balls spacing 5 cm apart. Top each with sliced onions. Press down firmly with a burger press to flatten. Immediately season with salt, pepper, and granulated garlic.
06 -
After 3–4 minutes, brush the top of each patty with prepared mustard, then flip using a spatula. Place a slice of pepper jack cheese on each and cook a further 3 minutes until cheese is melted.
07 -
Place buns cut side down on the griddle until golden and crisp.
08 -
Spread a generous layer of baconnaise sauce on the base of each bun. Stack two smash patties with sautéed onions and melted cheese. Add extra turkey bacon if desired. Spoon more baconnaise sauce, then finish with the top bun.