Cook onion in light butter on medium heat for five mins
Put the heat on high then add ground beef, cook for 6-8 mins till fully brown
Add Korean marinade, cook for 2-3 mins on medium heat till golden and juicy
Bottle the sauce up and store in the fridge. Only serve when ready to eat
Prepare ahead of time or use leftover cooked rice
Store this in a separate container to make reheating easier. Serve cold when ready to eat