Combine the pork mince, Cajun seasoning, breadcrumbs egg and a pinch of salt and pepper.
Shape the ground pork mixture into 2 evenly sized patties.
Cook the patties in an air fryer
Preheat air fryer to 360°F/ 180°C.
Spray air fryer basket with oil.
Add patties to air fryer basket. Ensure they are not touching.
Air fry patties at 360°F/ 180°C for 10 minutes, until cooked through [Note 1].
OR Cook the patties in a fry pan or grill
Heat a drizzle of oil in a medium fry pan or grill.
When the oil is hot, cook the burger patties for 4-5 minutes each side, until cooked through [Note 1].
While the patties are cooking
Slice the burger buns in half and place under a hot broiler for 2 minutes until just starting to brown.
Slice tomato and avocado.
Serve
Spread onion jam onto burger bun base. Add a patty, top with slices of tomato and avocado, and cos leaves. Spread mayo inside top of burger bun. Enjoy.