Tofu and Beef in Oyster Sauce

1. Saute aromatics.
2. Add cooking wine.
3. Make sauce - combine a bit of water with soy sauce, sugar, and 1/3 cup oyster sauce.
4. Add soft tofu, cook for a few minutes.
5. Add beef slices.
6. Make slurry.  
7. Push ingredients to the sides of the wok, creating a hole of sauce in the middle, and stir the slurry into the sauce.
8. Mix together until the slurry thickens.