the tuna, against grain, into 1/4-inch cubes. In a bowl combine the lemon juice
, lime juice and sugar. Stir in the vinegar and whisk
until incorporated. Add the diced tuna, the ginger, red onion, green onion and herbs
. Allow the tuna to marinate* for up to 1 hour.
the excess liquid from the tuna
, scoop into cones and serve.
*The marinating of the tuna with the fresh juices and sugar will be the cooking or curing process for the tuna