2 pounds ground pork
1 small apple - peeled, cored, and chopped
1/2 red onion, chopped
1/2 green or red bell pepper, chopped
1/4 cup teriyaki sauce
1/4 cup apple cider
1 teaspoon ground ginger
1/2 cup bread crumbs
1 teaspoon black pepper
1 teaspoon soy sauce
Mix the ground pork, apple, onion, bell pepper, teriyaki sauce, apple cider, ground ginger, bread crumbs, black pepper, and soy sauce together in a mixing bowl until evenly combined; shape into 8 patties. Chill the patties in the freezer for 30 minutes so they are not soft when placed on the grill.
Preheat an outdoor grill for medium-high heat and lightly oil the grate.
Cook the burgers on the preheated grill until firm, hot, and no longer pink in the center, about 5 minutes per side. An instant-read thermometer inserted into the center should read 160 degrees F (70 degrees C).