Corn, Squash and Tomato Stir Fry

Combine stock or water, soy sauce and cornstarch in a small bowl or measuring cup and stir to dissolve cornstarch. Place this mixture and all the other ingredients near the burner in the order they will be used.
Heat a 14-inch flat-bottomed wok or 12-inch steel skillet over high heat until a drop of water evaporates within a second or two when added to pan. Swirl in coconut oil and add onion, garlic and ginger. Stir-fry for about 2 minutes, until onion is crisp-tender, and add squash. Stir-fry for about a minute, until you can just see the squash becoming translucent, and add corn. Stir-fry for about 2 minutes, and add tomatoes, salt, and sugar. Stir-fry for about 2 minutes, until the tomatoes have collapsed and stir-fry is beginning to look saucy.
Stir in Thai basil and cilantro. Stir cornstarch mixture and add to pan. Continue to stir-fry for about 30 seconds, until vegetables are glazed. Remove from heat and serve, with rice, noodles or other grains.