Start by preheating your oven to 425°F so it's fully hot by the time your chicken goes in. While it heats, combine the smoked paprika, garlic powder, onion powder, cayenne, oregano, salt, and pepper in a small bowl. Stirring the spices together first ensures every drumstick gets an even, consistent coating.
Place your drumsticks in a large mixing bowl and drizzle the cooking oil evenly over the top. The oil acts as the glue that helps the spice blend stick to the chicken while also encouraging that golden, crispy skin in the oven. Sprinkle the seasoning mix over the chicken and toss everything together with your hands or tongs until every piece is fully coated.
Lay the seasoned drumsticks out on a baking sheet, leaving enough space between each piece so they aren't touching. Crowding the pan traps steam and keeps the skin from crisping properly. Lining the sheet with parchment or foil beforehand makes for a much easier cleanup once dinner is done.
Slide the pan into your preheated oven and bake for about 40 minutes total. Flip each drumstick halfway through cooking so both sides get that deep golden-brown color. Check for doneness with a meat thermometer inserted into the thickest part of the meat, avoiding the bone.
Once the chicken reaches a safe internal temperature, pull the pan out and let the drumsticks rest for a couple of minutes before serving. This short rest helps the juices settle back into the meat instead of running out the moment you cut in. Serve them hot alongside your favorite sides.