Pat your drumsticks dry with a paper towel, then toss them in a bowl with olive oil, garlic powder, smoked paprika, salt, and pepper. Make sure every piece gets an even coating so the flavor doesn't end up patchy. I like to let them sit for a few minutes while my oven preheats, which helps the seasoning stick better to the skin.
Preheat your oven to 400°F and arrange the drumsticks on a lined baking sheet with a little space between each piece. Roast for about 25 minutes, flipping halfway through, until the skin turns golden and the internal temperature hits 165°F. This step is where the "bones" get their crispy, roasted look that makes the whole platter feel spooky.
While the chicken roasts, make your mashed potatoes using your favorite method, whether that's boiling and mashing fresh potatoes or stirring together an instant mix. Add butter and milk gradually until you reach a thick, spreadable consistency. You want the texture firm enough to hold its shape on the platter, not thin or soupy.
Spread the mashed potatoes across your serving platter in an even layer, leaving the edges a little rough and uneven on purpose. This rustic, lumpy texture is exactly what gives the illusion of dirt or a graveyard mound. Don't worry about making it perfectly smooth imperfections actually work in your favor here.
Once the chicken is done, place the drumsticks on top of the mashed potatoes, positioning them so the bone ends poke slightly outward. Fan them out or stack a couple together to mimic bones peeking out of the ground. This layering step is really what transforms a normal dinner into a spooky centerpiece.
Scatter your sliced black olives across the potatoes and chicken so they resemble little spiders crawling over the bones. If you're using fresh parsley, sprinkle a bit around the edges for color. Serve immediately while the chicken is still warm and the presentation looks its freshest for the table.