250g minced pork
250g minced beef
1/2 onion, finely chopped
50g panko breadcrumbs
1 tbsp milk (as needed)
1 egg
1 tbsp katakuriko potato starch
pinch of pepper
1 tsp vegetable oil
1 tbsp butter
for the sauce:
5 tbsp ketchup
4 tbsp vegetable and fruit sauce (chuno sauce)
1 tbsp oyster sauce
2 tbsp red wine
2 tbsp water
1 tsp sugar




