The soy sauce and oyster sauce add just the right amount of umami flavor….and of course garlic. When garlic & onion sweat enough, add light soy sauce and cook for further 2 minutes by turning baby bok choy sides often. In a small saucepan, combine oyster sauce, stock, soy sauce, sesame oil and cornstarch mixture. Cooking the bok choy in a hot pan allows them to caramelize without becoming mushy. What is Bok Choy? And this bok choy stir fry is super easy, but still packed with flavor. Bring to a boil over medium heat, stirring until sauce bubbles and thickens; remove from heat. Because what is a vegetable without garlic? Blanch bok choy in a saucepan of boiling water for 1 1/2 minutes; remove from pan with a … Step 3 Add water & Oyster Sauce by mixing well with baby bok choy, let it cook for further 1 minute before you take the sauce pan out of the heat.