01 -
In a small saucepan over medium heat, combine pineapple juice, soy sauce, rice vinegar, honey, garlic, and ginger. Cover and bring to a boil, then uncover and cook for 1 minute, stirring constantly. Mix cornstarch with 1 tablespoon water in a separate bowl to make a slurry. When sauce boils, add slurry and stir. Cook for 1 minute until thickened, then remove from heat.
02 -
In a large mixing bowl, combine ground turkey, panko, garlic, ginger, black pepper, cilantro, and 3 tablespoons prepared teriyaki sauce. Mix until just combined without overworking. Shape into four patties approximately 2 cm thick. Refrigerate patties for 30 minutes to firm.
03 -
Preheat grill to medium-high heat and lightly oil grates. Set aside some of the remaining teriyaki sauce for brushing and for serving.
04 -
Grill pineapple rings 3 minutes per side until caramelized. Grill red onion slices for 4 minutes, flipping once, until tender and charred.
05 -
Grill patties for 4 minutes on the first side, flip, then brush with teriyaki sauce. Grill 4 minutes, flip again, brush opposite side, and continue grilling until internal temperature reaches 71–74°C, about 10 minutes total. Remove from grill and let rest, covered, for 5 minutes.
06 -
Grill whole wheat buns until lightly toasted, if desired.
07 -
Place each patty onto the bottom half of a bun, brush with reserved teriyaki sauce, and top with grilled pineapple and grilled onion. Cover with the top bun and serve immediately.