Gather only kelp that is still attached and living. Cut off the hollow portion of a firm, fresh looking kelp tube. Wash it in fresh water and cut it into ring slices. Put rings into a glass container along with one large sliced onion. Add a sprinkle of garlic salt and 1 teaspoon of lemon juice. Cover with a brine solution and refrigerate for at least 48 hours before serving.
2 Cups vinegar
2/3 cup water
½ cup white sugar or up to 1 cup
4 tablespoons pickling spices
Combine all ingredients and bring to a boil. Boil one minute. Allow to cool before pouring over kelp rings.