Prepare the filling: Combine the prawns, pork mince, ginger, garlic, spring onion whites, cornflour, soy sauce, five-spice powder, and Shaoxing wine in a large bowl. Mix well until thoroughly combined.
Make the wontons: Take a wonton wrapper, place about a tablespoon of filling in the centre. Wet two edges of the wrapper with water, fold in half to form a triangle, then bring the two bottom points together, pressing to seal. Repeat until all filling is used.
Prepare the chilli peanut sauce: Add crushed chilli, Korean chilli flakes, cumin, sesame seeds, crushed peanuts, and sugar to a bowl. Heat peanut oil until smoking slightly, pour over the ingredients, stir, then mix in peanut butter and spring onion greens.
Cook the wontons: Bring a pot of water to a boil. Add wontons and cook for 4-5 minutes, or until they float. This indicates they are done.
Serve: Spread chilli peanut sauce on a plate, place 8-10 wontons on top. Serve immediately.