Poke is an easy dish to make if you have the proper ingredients. Whatever you put in the mix, poke purists insist one ingredient you must include is Hawaiian sea salt. It adds that extra little something that table salt just can't match. I've not seen Hawaiian salt outside of the islands, but I haven't looked very hard because I still have ample supply. However, I know there are merchants online that will ship the salt.
There are many variations of poke. This is a simple recipe to get you started.
Ingredients
2 lbs fresh ahi tuna
Small white or yellow onion
1 cup soy sauce (not low-sodium)
1 tablespoon sesame oil
Hawaiian sea salt
Directions
Dice tuna and julienne onion. Mix well with soy sauce and sesame oil. Salt to taste. Chill for about an hour and serve over rice.
Variations
I've had poke mixed with tomatoes and octopus, or topped with seaweed and sesame seeds. You can use a sweeter soy sauce, or spice it up with red chili pepper flakes. The possibilities are endless when it comes to poke.