My best CHICKEN STEW recipe,Chinese style.

ingredients ;
1/2 chicken (cut cubes ) marinated with salt and white pepper.
onion (cut cubes)
minced garlic
butter
flour
chicken broth
potato
carrots
oyster sauce
salt and black pepper

[@Kat-d7v]

The best

[@XEROSPAWN]

What are ingredients?
Can't able identify anything except chicken.
Share the recipe and method in English.