Makes one serving
1 strip scallion, cut into small pieces
¼ medium sized purple onion, diced
1/3 jalapeno pepper, finely chopped
1 tablespoon sesame oil
4 tablespoons soy sauce
2 tablespoons Mirin (Japanese sweet sake)
2 ounces fresh sashimi-grade tuna, cubed
¼ medium sized English cucumber, sliced in thin strips
Pinch shishimi (Japanese seven spice), optional
Mix together soy sauce and mirin. Add sesame oil. Stir well with whisk. Add scallion, jalapeno and onion to marinade. Let sit, overnight.
Add tuna to marinade sauce; toss for a minute or so. Serve immediately in a martini glass, paired with the fresh cucumber strips.