Loco moco

Season the patty generously both sides with salt, black pepper and cayenne.

Slice about a tablespoon of green onions.

Mix the sauce: beef stock, soy sauce, Worcestershire, sesame oil, ketchup, cornstarch and sugar, whisked together before cooking starts.

Cook the patty over medium-high heat in a little butter; give the first side about five minutes to build a deep crust, then flip.

Toss the green onions in alongside and char them while the second side cooks.

Cook to about medium to medium well, spoon the caramelized onions over and move the burger to a plate to rest in a warm spot.

Stir the sauce mixture and pour it into the pan to deglaze.

Stir over medium-high a couple of minutes until thickened and glossy, then reduce to low.

Fry the egg over medium heat in a little butter, seasoning the top with salt and cayenne.

Assemble over hot white rice: burger with its juices, then the gravy, then the runny egg, finished with sliced green onions.