Could you plz correct this T^T? I wanna sound more natural

My own Kimchi jjigae recipe

First of all, put cooking oil, onions and green onions in the frying pan and stir fry them. The reason why I stir fry vegetables first is that the soup will be thicker. And then, put Kimchi and pork in it and season chili powder, red pepper paste, black pepper and minced galic and keep stirring. If it seems cooked, pour water and boil it. If it starts simmering, put soy sauce a little, salt to make it well seasoned. Keep boiling for another 10 minutes and the longer you boil it, the thicker it'll be. Also don't forget to put chooped green onions for decoration at the end ^^