Place the pork shoulder in a slow cooker or roasting pan. Rub it generously with paprika, cumin, chili powder, salt, and pepper.
Cook the pork on low for 6-8 hours in the slow cooker or roast in a 300°F oven until the meat is tender and easily pulls apart. The pork should be juicy and fragrant with smoky notes.
Once cooked, transfer the pork to a large plate or cutting board. Use two forks to shred the meat into juicy, tender shreds, pulling apart while still hot for the best texture.
Pour the BBQ sauce and apple cider vinegar over the shredded pork. Mix thoroughly so the sauce coats every strand evenly, and the mixture is moist and flavorful.
While the pork is resting, split the buns and toast them in a skillet or oven until golden brown and slightly crispy. This adds a lovely crunch to your sliders.
Slice the onions thinly or caramelize them in a skillet until soft and fragrant, about 10 minutes. The savory sweetness complements the smoky pork perfectly.
Assemble each slider by placing a generous scoop of pulled pork onto the toasted bottom bun. Top with slices of pickles and onions, then cover with the toasted top bun.
Serve immediately, allowing the juices to drip slightly as you bite into the tender, smoky pulled pork nestled in a crunchy bun. Enjoy the perfect balance of flavors and textures.