Using a food processor, or mortar and pestle, combine pork, drained shrimp and half the crab meat until it forms a smooth paste. Transfer to a bowl and mix in shrimp paste, salt, pepper and remaining crab by hand. Beat in egg with a fork and refrigerate for an hour.
Heat oil in a saucepan and cook shallot for 2 to 3 minutes. Add garlic and half the red chilli and cook for another 30 sec