Prepare the Dijon Vinaigrette marinade according to the recipe directions.
Place the chicken legs in a resealable plastic bag or shallow bowl. Pour the marinade over the chicken, turning to coat all pieces.
Cover the bowl or seal the bag and refrigerate for at least 3 hours, or overnight for deepest flavor.
To Cook On The Grill:
Preheat grill to medium-high, 400-450°F, and oil the grates.
Remove drumsticks from marinade, letting excess drip off.
Place the drumsticks skin-side down directly over heat.
Grill with lid closed, turning every 5–7 minutes, for 30–35 minutes.
Remove chicken from grill when the internal temperature reaches 185°F for best texture, or a minimum of 165°F for food safety.
Tent with foil and let the chicken rest for 5-10 minutes before serving.
To Cook In The Oven:
Preheat oven to 400°F. Prepare a baking sheet with a lining of foil or parchment paper. Set a wire rack on top and lightly spray it with nonstick cooking spray.
Remove drumsticks from marinade, letting excess drip off.
Arrange the drumsticks skin-side up on the wire rack.
Bake for 40-45 minutes, turning halfway through, until internal temperature reaches 185°F for juicy texture or a minimum of 165°F for food safety.