Pour four circles of batter on a buttered griddle and sear until cooked through ... Using the same pan, add bacon pieces and cook until crispy. Remove half and set aside for final garnish.

Take the pan off the heat and keep the onions warm. Heat a grill or a griddle pan to high and cook the bacon until crisp at the edges. Keep it warm. Season the liver slices with salt and pepper ...

Top each burger with a slice of cheddar, some blue cheese and 2 slices of bacon. Add a little water to the griddle pan and cover with a closh or lid. Cook for 1–2 minutes until the cheese has ...