Chop the Chikuzen-ni into small pieces.

Mix breadcrumbs and milk in a bowl, letting the milk soak in. Add ground meat, chopped Chikuzen-ni, and salt and pepper. Mix thoroughly and shape into 4 oval patties with a slight indentation in the center.

Heat salad oil in a frying pan over medium heat. Add the patties and cook until browned. Flip, cover with a lid, and cook on low heat for 7–8 minutes until fully cooked. Remove from the pan.

In the same pan, add the sauce ingredients (sake, mirin, soy sauce, dashi powder, and water). Simmer on low heat while stirring until the sauce thickens.