Cut the king oyster mushrooms into slices about 5 mm thick and set aside in a bowl.
For the marinade, mix the soy sauce, rice vinegar, agave syrup, chilli flakes and the grated clove of garlic and pour over the mushrooms. Mix well so that the mushrooms are evenly coated with the marinade.
Marinate for 30 minutes in the fridge, turning 1-2 times in the marinade in between.
Heat the oil in a pan and add the king oyster mushrooms. There will be some marinade left in the bowl, don't throw it away.
Now sauté the mushrooms over medium heat. You will lose some liquid while frying, continue frying until it has evaporated. Finally, pour the leftover marinade into the pan and sauté the mushrooms for another 3-4 minutes.
We like to use spring onions or sesame as a topping!