Heat your wok with cooking oil and put in about 2tablespoon of sugar and let it caramelize and add in your pork meat. Stir about 5-8 minutes and put it aside.

Then,the same wok no need a new one,just add it abit of cooking oil and add in first your garlic and lemongrass,until golden brown color and then add in your red onion.then your caramelize pork meat. Stir well. Add in abit of water so it is not too dry.Let it cook for about 10minutes with medium high heat.then add in your tomato and all your sauces.