Our family friend came back from a short vacation in Bohol, Philippines. She brought some seaweed, and gave us some. I love seaweed especially this kind. This is commonly called "guso" back home. This isn't fresh, but the dried one.
I soak a hand full of this in water overnight.
It is prepared, mixed with chopped tomato, onion, and ginger, seasoned with vinegar, salt and pepper, and coconut milk. Here in the USA , I substitute it with a teaspoon of mayonnaise, since fresh squeeze coconut milk is hard to find.