Our common meal and how is it prepared

The meal is prepared with a method in Indonesian called "bakar batu" or "bake the stones", which means, heat the stones with fires. Dig hole on the ground, put grass, then put the hot stones on the grass, cover the stones with more grass, put the meal: normally sweet potatoes first, then put the stones on top of the potatoes. After this, put the grass again, then put the vegetables (such as cabbages, spinach, sweet-potato leaves, cassava leaves, papaya leaves, etc.), or fruits like cucumber, corn, etc.