Cube your raw fish, and prep and slice your onion, green onions and ginger.
Add your cubed ahi poke in a large bowl. Add in all your ingredients in a bowl with soy sauce, sesame oil, ponzu, gochugaru or togarashi, sesame seeds and a pinch of sugar. Toss well to combine.
*If you want to make this creamy, add a touch of spicy mayo (just eyeball a mix of sriracha, sesame oil, mayo (I like Kewpie) and sugar. Mix in with the above sauces if you want it creamy, or just do a drizzle on top as well.
Let marinade in the fridge for 5-10 minutes (or longer!) but I definitely recommend letting it sit in the fridge for a tad, it really brings all the flavors together.
Spoon your ahi poke mixture in a dish over white rice! Garnish with green onions and a drizzle of spicy mayo if you prefer!