Preparation

• Generously season the chicken with salt and pepper. Form 8 thin 4-ounce patties. Place 1 tablespoon cheese in the center of 4 patties and top each with the remaining 4 patties, sealing the edges. Refrigerate 1 hour.
• In a large skillet over medium-high heat, warm the vegetable oil. Cook the burgers 4 to 5 minutes, until they begin to brown on the bottom. Flip and cover. Cook another 4 to 5 minutes, then liberally brush the tops with the balsamic vinegar.
• Remove, place the burgers on the buns, top with a tomato slice and serve.