Tuna Sashimi with a ginger, chilli & ponzu dipping sauce
Mix all ingredients for the dipping sauce together and transfer to a serving bowl.
Arrange tuna slices on a plate. Garnish with black and white sesame seeds.
Note – Don’t pour the dressing over the tuna unless you are going to eat it immediately. The ginger, chilli and vinegar will pickle the fish and it will begin to cure.