Mix the minced venison, pork fat, salt and pepper together. Divide the mix into four 125g balls and press down to form patties, then set aside.
Finely chop the lettuce and red onion and grate the smoked cheddar.
Melt the butter, add in the flour and cook for 2 to 3 minutes.
Slowly pour in the milk and cream, stirring continuously. Once combined, mix in the cheese and season to taste.
In a pan, combine the BBQ sauce and venison bonbon mix and warm it up overa low heat. Cook the venison burgers and bacon rashers on a BBQ for 10 minutes, flippingthem over halfway. Sprinkle some of the red onion over the burgers, followed by a sliceof cheddar and bacon. Leave on the BBQ until the cheese melts over the burger.
Toast your brioche on the BBQ, then spread some mayonnaise over both halves. Put some shredded lettuce and the pulled shoulder meat on the bottom half of the brioche.
Place the patty on top and spoon over some of the smoked cheddar béchamel.
Finish with a dollop of the American mustard and place the top half of the brioche on top