Place the cauliflower in a pan with a tight lid. Add the water, the garlic, and sprinkle the olive oil over the cauliflower. Cover with a lid. Bring to a boil, with a high flame. Simmer until the cauliflower is soft to the touch. As it is simmering, make sure that the water doesn’t evaporate completely. Add a little water if needed. Add a few drops of soy sauce. Cook another minute. Serve.