Soak the arame in the water for approx 5 minutes. Remove from the soaking water by lifting it out with your fingers. Save the water.
Cut the arame into 3 cm pieces. Heat oil in a small pan.
Saute the ginger and garlic for 1 minute on a low heat. Add the arame and raise the temperature lightly. Saute for 5 minutes.
Add 1/2 cup of the soaking water and cook for 15 minutes or until the water has completely cooked away. Stir well and serve.