Press the grated potato with a cloth to remove as much water as possible.
Mix all ingredients (except oil and flour) together adding the flour a little at a time until you can make your batter stay in blobs. You may not need all the flour.
Heat oil in a non-stick pan to medium heat and place large spoonfuls of batter into pan and cook until light brown, flip and repeat.
Dipping Sauce - Add soy sauce, rice wine vinegar and sugar to a small bowl and whisk. Let the sugar dissolve. Add spring onions and whisk again.
Sprinkle pancakes with Sesame Seeds and serve.
Recipe Note
You can replace the spring onions with leeks for a stronger flavoured pancake.