Heat the oil in a wok.
Saute the onion and lemongrass for about 2 minutes.
Add the garlic, ginger, lime leaves and bird's eye chili and fry for another 30 seconds until it gets aromatic.
Mix in the curry paste and saute for a few minutes. If it is too dry, add about 2 tbsp of water to get it going.
Add the beef/chicken pieces to the pot and season with some salt. Cook till the meat is tender.
Stir in the coconut milk and sugar.
Turn the heat down and simmer for a few minutes.
Garnish with fresh cilantro and basil leaves
Serve over cooked rice.