Step 1

In a large bowl, combine the shrimp, rice wine, ginger, garlic, salt, and pepper, and stir until ingredients are thoroughly distributed. Sprinkle the cornstarch over the mixture and stir again until evenly coated. Cover and marinated in the refrigerator for 30 minutes to 1 hour.

Step 2

In a large wok or skillet, heat the vegetable oil over high heat until shimmering and very hot. Add the scallions and cook briefly, just until fragrant, 20 to 30 seconds. Add the shrimp--the wok should sizzle loudly--and cook, tossing with a spatula every so often, until the shrimp are pink, about 5 minutes. Turn the heat off and add the peas, chili garlic paste, and vinegar (if using). Stir to incorporate, and serve immediately.

Step 3

In a large wok or skillet, heat the vegetable oil over high until shimmering and very hot. Add the garlic and cook briefly, just until fragrant, 30 seconds or less. Add the bok choy--it shoudl sizzle very loudly as it hits the oil. Sauté briefly, tossing the bok choy vigorously, until evenly coated in oil.

Step 4

Add the chicken stock, reduce the heat to low, and cover. Let steam until the bok choy steams are tender and the leaves are dark green and wilted, about 5 minutes. Season with salt and pepper, and serve hot, with rice.