Albacore Shiso Tacos

Name: Albacore Shiso Tacos
Ingredients: 2 tablespoons Thai fish sauce; 4 tablespoons fresh lime juice; 2 garlic cloves, minced; 1 1/2 teaspoons brown sugar; 1/2 teaspoon kosher or sea salt; 1/2 cup raw cashews, chopped chunky; 1/2 cup green onion, sliced; 1/2 cup shiso leaf, finely chopped; 1/4 cup Thai basil, finely chopped; 1/4 cup mint, finely chopped; 1/4 cup onion, minced; 3 tablespoons olive oil; 1 1/2 pounds fresh albacore tuna, chopped in 1/4 pieces (sashimi grade not necessary); ground cayenne pepper (about 1/8 t); 12 corn torillas, small size; a good, spicy pepper sauce (like cholula); Lime wedges