Step 1

Combine the oyster sauce, fish sauce and sugar in a small bowl. Heat 2 teaspoons of oil in a large wok over high heat. Stir-fry one-third of the pork for 2 minutes or until browned. Transfer to a plate. Repeat, in 2 more batches, with oil and remaining pork, reheating the wok between batches.

Step 2

Heat remaining oil in the wok. Stir-fry the capsicum, chilli and garlic for 2 minutes or until soft. Add the beans and water, and stir-fry for 3 minutes or until the beans are tender crisp and the water evaporates.

Step 3

Stir in the oyster sauce mixture and pork. Add the basil and toss to combine. Serve with rice, if desired.