Preheat oven to 350 degrees Fahrenheit.

Pat chicken dry.

In a medium-sized bowl, mix together mayonnaise, barbecue sauce, mustard, and honey.

Place the onions in a second bowl.

Coat drumsticks in the mayonnaise mixture, then transfer chicken to the onions and coat, pressing down so they get well coated.

Place drumsticks in a 9×13-inch pan. Drizzle oil over chicken.

Bake uncovered for one hour.