STEP 1Heat 1 tablespoon of the vegetable oil in a wok or frying pan over high heat. Add the lemongrass, chilli and onion and stir-fry for 2 minutes. Then add the garlic. Move all the ingredients to the side of the pan and in the centre add the remaining 1 tablespoon of oil. Add the pork and stir-fry for 2 minutes or until almost cooked. Add the sugar, fish sauce and sweet dark soy sauce. Simmer for 3-4 minutes or until the liquid has almost all evaporated. Stir through the corn flour mixture. Season with pepper. Remove from heat. Divide among serving bowls of rice and top with chilli and coriander.