Yellowfin tuna poke - Burren Design

Ingredients

• 1 pound ahi (yellowfin tuna) steaks
• Scant 1/4 cup sweet onion, thinly sliced
• 1 scallion, sliced on bias (about 1/4 cup)
• 2 cloves garlic, minced
• 2 teaspoons black sesame seeds, toasted
• 2 teaspoons macadamia nuts (roasted and unsalted), chopped and toasted
• 3 tablespoons soy sauce
• 2 tablespoons sesame oil
• 1/4 to 1/2 teaspoon 'alaea or Hawaiian sea salt, or coarse Kosher salt
• 1/2 teaspoon red pepper flakes (optional)