Soak the cracked wheat and barley in a bowl of water for 1 hour.
If using soya nuggets, soak them in a bowl of water for 20 minutes, until they expand. Drain them, then place in a blender and grind into large crumbs. Set aside.
Heat the rice bran oil and ghee in a large heavy-based saucepan. Add the onion and garlic and cook over medium heat for a few minutes, or until the onion