Tuna Poke Recipe

½ cup low-sodium soy sauce

2 tablespoons mirin

1 tablespoon toasted sesame seeds

1 small shallot

cut into strips

3 cloves garlic

crushed

1 teaspoon freshly grated ginger

1 teaspoon sesame oil

1 teaspoon red pepper flakes

1 teaspoon sriracha sauce

1 pound sushi-grade tuna

cut into small cubes

1 avocado

chopped