Chop roughly onions, ginger and coriander. Add to the blender and puree it. Put ground meat in a bowl, add all spices plus green mixture. Mix all together and knead it very well. Place a pan over medium heat, splash oil. You could spread meat mixture in the pan OR use skewer, as i have done. So, start spreading meat on the skewer by opening and closing your finger in order to stick meat to the skewer