AD| Don’t trap your mayonnaise inside the sandwich, let it out! #HellmannsAU @hellmannsmayonnaise Ingredients: - 200g beef mince (separated into 2, even balls) - 2 thick slices of brioche (2-3cm thick each) - 2 slices American cheese - 1 small brown onion (sliced thin) - 1 tbsp butter - 1 tsp Worcestershire sauce - 1 handful rocket - Salt and pepper for seasoning Melt butter in a small, non-stick frying pan before adding the onions and a generous pinch of salt. Cook on low, stirring occasionally to avoid sticking for 20-30 mins minimum. The goal is a golden-brown colour on the onions and no burnt spots. Remove from the heat, add the Worcestershire sauce and season to taste with salt and black pepper. Heat up a stainless steel or cast-iron frying pan until ripping hot (literally screaming hot), add 1 tbsp neutral oil and turn the heat down slightly. Add in balls of mince and press down flat with a burger smasher or spatula. Season generously with salt and pepper. Once the edges turn gr...