Watercress with Rice Wine-Oyster Sauce

To prepare the sauce: Whisk rice wine, oyster sauce, sugar and salt in a small bowl.

To prepare the watercress: Heat a 14-inch flat-bottomed wok or large skillet over high heat until a bead of water vaporizes within 1 to 2 seconds of contact. Swirl canola oil into the pan, add garlic and stir-fry for 10 seconds. Add watercress and stir-fry until it just begins to wilt, about 1 minute. (The wok will become very full as the watercress is added; stir constantly to avoid scorching the greens.) Stir the Rice Wine-Oyster Sauce and swirl it into the pan; stir-fry until the watercress is just tender but still bright green, 1 to 2 minutes. Stir in sesame oil. Remove garlic. Serve immediately.