For the broccoli: Pour 600ml of water in the inner pot. Select Saute. When the water boils, add in the broccoli, 1 tsp salt, and 1 tsp oil. Blanch the broccoli for 5 mins. Remove and set aside.
For the dry scallop: Soak the dry scallop in 100ml of hot water for 30 mins. Drain and then Steam in the Instant Pot on Normal for 10 mins. Quick Release. Set aside.
Add 2 tbsp of oil in the inner pot, saute the oyster mushrooms & shimeji mushrooms until soft. Add in 2 tbsp oyster sauce, mix well remove.
Add drained braised mushrooms and 2 tbsp oyster sauce. Saute, add in the rest of mushrooms. Stir in 2 tsp of cornflour mixed with 100 ml braised mushrooms stock.
Ladle on plate surround by broccoli & dry scallop.