Take out the minced meat from the fridge and let come close to room temperature before you add it to the rest of the mixture.
Dice the onion, mince the garlic and mince the ginger.
Mix onion, garlic, milk and breadcrumbs in a bowl and let sit for at least 5 minutes.
Once the mixture has come together in to a sludge, add the minced meat, ginger, lemon grass pure, ouster sauce, egg, salt and pepper.
Stir it all together. I will do it using my hands but feel free to use a spoon, just make sure everything comes together in to a smooth batter.
Wet your hands with cold water and roll the mince batter into round meatballs. Place on a cooking tray, space apart.
Cook in the middle of the oven for 10 mins at 180 °C (360 °F)
If using a frying pan, add some butter in the bottom of the pan and fry the meatballs on all sides until golden in colour.