01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper or lightly grease it.
02 - In a large bowl, combine ground chicken, panko, egg, green onions, garlic, soy sauce, sriracha, salt, and pepper. Mix gently until just combined.
03 - Using damp hands or a cookie scoop, form the mixture into 1.5-inch meatballs and place them on the prepared baking sheet.
04 - Bake meatballs for 18-20 minutes until golden and cooked through.
05 - In a small saucepan over medium heat, combine hot sauce, brown sugar, apple cider vinegar, honey, and red pepper flakes. Bring to a simmer and cook for 3-4 minutes, stirring, until slightly thickened. Remove from heat and whisk in melted butter.
06 - Once meatballs are cooked, transfer them to a large bowl. Pour the firecracker sauce over the meatballs and toss gently to coat. Sprinkle with sesame seeds and sliced green onions before serving.