Ingredients

  • 34 cup mayonnaise
  • 2 tablespoons extra virgin olive oil
  • 2 tablespoons minced red onions
  • 2 tablespoons chopped fresh cilantro
  • 1 tablespoon minced canned chipotle chile
  • 1 tablespoon drained capers
  • 1 lb ground turkey
  • 4 hamburger buns
  • 4 slices red onions
  • 8 slices plum tomatoes
  • 2 bunches arugula (about 1 ounce)

Method

  • Whisk first 6 ingredients in small bowl.
  • Season with salt and pepper.
  • (Sauce can be made 2 days ahead.
  • Cover and chill.
  • ).
  • Prepare barbecue (medium heat).
  • Form ground turkey into four 1/2-inch-thick patties.
  • Sprinkle with salt and pepper.
  • Grill burgers until cooked through, about 5 minutes per side.
  • Grill buns until just toasted.
  • Spread 1 tablespoon sauce on bottom half of each bun.
  • Top each with 1 burger, then 1 more tablespoon sauce.
  • Top each with 1 onion slice, 2 tomato slices, then 1/2 bunch arugula.
  • Cover with bun tops.
  • Serve, passing remaining chipotle tartar sauce separately.