Wash and then cut the white part of the leeks into slices. Heat a frying pan and add a drizzle of olive oil. Fry the leeks gently for about 10 minutes until soft. Season with salt and pepper. Put to one side.
n
Grill the bacon rashers for 5 min. Put to one side.
n
Put the burger buns in the oven for 5 min.
n
Heat a frying pan and add a knob of butter. Once the frying pan is hot, sear the steaks. Season with salt and pepper.
n
Spread the lower buns with grain mustard. Add a few spinach leaves and place the steaks on top. Add the grilled bacon rashers and then the Roquefort and leeks. Close the burgers with the top bun.
n
Serve hot and accompany with homemade chips and a glass of India pale ale!