Cook your pasta of choice until just shy of al dente, drain but reserve the starchy pasta cooking water.
Heat a splash of cooking oil and add 1 cup of sliced mushrooms. Cook down the shrooms until they have browned and released most of their water.
Add 1-2 tbsp of butter along with 4-5 cloves of minced garlic + 2-4 tsp of chilli flakes/ gochugaru (crushed red pepper flakes). Stir well to ensure that the mushrooms are evenly coated.
Pour in 1 tbsp light soy sauce, 1 tbsp dark soy sauce (or sub with more light soy sauce), 1 tbsp vegetarian oyster sauce, and a ladle of the pasta cooking water. Let the sauce sizzle and thicken.
Turn down the heat before tossing in your cooked pasta along with a handful of scallions.
Give it a good mix to combine, add more chilli oil if you'd like, serve HOT and DIVE IN!
