Spicy Coconut Cashew Tuna Tartare

Ingredients for 4 portions:
8 oz frozen “Sushi Grade” Yellowfin tuna (aka Ahi), diced, kept ice cold)
2 tbsp chopped cashews
2 tbsp sliced red onions
2 tsp grated fresh ginger
1 lime, juiced, plus more to taste
salt to taste
2 tbsp thinly sliced fresh jalapeño rings or 1 tbsp minced serrano pepper
1/4 cup coconut milk, or more to taste
1 tbsp torn cilantro leaves
dried red chili flakes to garnish
Taro chip, optional (you can also use fried wonton chips, or sweet potato chips)