01 - Preheat your oven to 200°C (400°F). Line a baking sheet with parchment paper or aluminum foil, then place a wire rack on top.
02 - Pat the chicken drumsticks completely dry. Toss them with kosher salt, black pepper, and 1 tablespoon of olive oil. Arrange the seasoned drumsticks on the prepared wire rack.
03 - Combine cream soda, ketchup, soy sauce, honey, apple cider vinegar, minced garlic, and smoked paprika in a small saucepan. Bring the mixture to a boil over medium heat, then reduce heat to a simmer. Cook for 10 to 12 minutes, stirring occasionally, until the glaze has thickened and achieved a syrupy consistency.
04 - Generously brush the chicken drumsticks with the prepared cream soda glaze, reserving a portion of the glaze for later use.
05 - Bake the drumsticks for 25 minutes. Remove from the oven and brush them again with the reserved glaze.
06 - In a separate bowl, combine the lightly crushed cornflakes with 2 tablespoons of olive oil, garlic powder, onion powder, and cayenne pepper (if using). Mix well.
07 - Remove the drumsticks from the oven. Evenly sprinkle the cornflake mixture over the drumsticks, pressing gently to help them adhere.
08 - Return the drumsticks to the oven. Bake for an additional 10 to 15 minutes, or until the chicken is thoroughly cooked (internal temperature reaches 74°C / 165°F) and the cornflake coating is golden brown and crisp.
09 - Serve the Cream Soda Glazed Drumsticks hot. Drizzle with any remaining glaze, if desired.