Tuna Tartare With Avocado And Radish

Ingredients

• 2 teaspoons finely grated lime zest or 4 kaffir lime leaves
• 2 tablespoons fresh lime juice
• 1 tablespoon sugar
• 2 tablespoons plus 2 tsp. soy sauce
• 2 tablespoons champagne vinegar or white wine vinegar
• 2 tablespoons grated peeled ginger
• 10 ounces albacore or bigeye tuna, minced
• 2 tablespoon olive oil, divided
• 1 teaspoon minced seeded red or green thai or serrano chile
• 1 teaspoon minced shallot
• kosher salt
• 1 avocado, halved, pitted
• 4 radishes, thinly sliced
• chili oil