In a large mixing bowl, combine the pineapple juice, soy sauce, brown sugar, honey, minced garlic, grated ginger, sesame oil, and black pepper. Mix until the sugar is dissolved.
Add the chicken wings to the marinade, ensuring each wing is well coated. Cover and refrigerate for at least 1 hour, or overnight for more intense flavor.
Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper for easy cleanup.
Arrange the marinated chicken wings in a single layer on the prepared baking sheet. Bake for 30 minutes, flipping them halfway through.
While the wings are baking, pour the remaining marinade into a saucepan. If you want a thicker sauce, mix cornstarch with a tablespoon of cold water and add it to the marinade. Bring it to a simmer over medium heat and cook until slightly thickened, about 5-7 minutes.
After 30 minutes of baking, remove the wings from the oven and brush half of the thickened glaze over them. Return the wings to the oven and bake for an additional 10-15 minutes, until the wings are crispy and caramelized.
Remove from the oven and toss the wings in the remaining glaze. Transfer to a serving platter.
Sprinkle with sesame seeds and chopped green onions before serving.