Italian-Style Tuna Sandwich | Genova Seafood

Ingredients

• 1 cup italian parsley leaves, washed and dried
• 1⁄3 cup extra virgin olive oil, plus more as needed
• 1 garlic clove, minced
• 1⁄4 cup roughly chopped green olives, such as castelvetrano
• 1 anchovy fillet, chopped
• 1 tablespoon chopped capers
• zest of 1 lemon
• 1 teaspoon tarragon leaves (or tarragon vinegar)
• pinch of crushed red pepper
• salt and pepper