Grilled Tuna Burgers with Homemade Rémoulade Recipe | Epicurious

Ingredients

• 1/2 cup mayonnaise
• 1 tablespoon fresh lemon juice
• 1 garlic clove, pressed
• 1 teaspoon (packed) minced fresh Italian parsley
• 1 teaspoon grated onion
• 1 teaspoon anchovy paste
• 2 hard-boiled large egg yolks
• 1/4 cup extra-virgin olive oil
• 2 tablespoons drained capers
• 1/4 cup olive oil
• 2 tablespoons tarragon vinegar
• 2 small bay leaves, broken
• 4 6-ounce ahi tuna steaks (each about 1 inch thick)
• Nonstick vegetable oil spray
• 4 4-inch square crusty artisanal rolls or squares of focaccia, split horizontally