Olive oil (for greasing baking sheets)
Preheat oven to 250. Mix tamari sauce, wasabi powder, and garlic powder to your liking. You can add water to the mix to make it less salty or just not so strong. Brush olive oil on your baking sheet.
Brush tamari mixture on both sides of a nori sheet. Try to brush a very light amount onto the nori. I pressed most of it out of the brush on the side of the bowl. Cut nori into squares or strips, whatever size you like. Place on cookie sheet. Repeat until cookie sheet is covered.
Bake for about 15 to 20 minutes, until crisp. Make as many batches as you have the patience to.