Combine cilantro, jalapeño, ginger, garlic, lime juice, soy sauce, sugar, salt, pepper, and 2 Tbsp of olive oil in bowl and mix well.
Heat a heavy skillet slowly and once the skillet is fully heated, turn up heat to high.
Add 2 Tbsp of extra-light olive oil and coat for searing.
Season tuna with salt and pepper and grilled quickly - about one minute per side. You can hold the tuna on its edge with tongs to get the sides.
Turn off the heat and pour ½ of the sauce mix onto the tuna and turn a few times to cover the tuna.
Plate the tuna with the avocado and pour the remaining sauce over the tuna and avocado.
"A mere listing of ingredients is not protected under copyright law. However, where a recipe or formula is accompanied by substantial literary expression in the form of an explanation or directions, or when there is a collection of recipes as in a cookbook, there may be a basis for copyright protection."
On this site, for recipes written by others, the ingredients are listed and a link to the original recipe has been provided.