Start by removing the thin membrane from the back of the ribs using a paper towel to grip and peel it off, ensuring a more tender final result.
Mix paprika, salt, sugar, and cayenne pepper together to create a flavorful dry rub, then massage it thoroughly into every crevice of the ribs, coating them evenly with a sticky, aromatic layer.
Place the ribs on a tray and let them sit at room temperature while you prepare your smoker, ensuring the meat absorbs the flavors.
Preheat your smoker to about 225°F (107°C) and add apple wood chips to the smoking box or directly onto the coals, creating thick bluish smoke that fills the air with a sweet aroma.
Place a water pan beneath the ribs to maintain humidity, filling it with water or a flavorful alternative like apple juice, and position the ribs on the smoker rack with the meaty side up.
Spritz the ribs with the vinegar mixture every hour to keep the meat moist and help build a shiny, flavorful bark as they smoke for about 3 to 4 hours, adjusting vents as needed to maintain steady smoke flow.
Wrap the ribs tightly in foil once the bark has developed a deep mahogany color and the meat begins to pull back from the bones, which usually takes about 3 hours.
Continue to smoke the wrapped ribs for another 1 to 2 hours, maintaining the temperature and ensuring the meat becomes tender and juicy.
Remove the foil and insert a meat thermometer into the thickest part of the meat; once it reaches about 190°F (88°C), the ribs are ready to serve with a tender, fall-off-the-bone texture and a smoky, crackling bark.
Let the ribs rest for a few minutes, then slice between the bones to reveal the juicy, smoky interior, ready to serve with your favorite sides or barbecue sauce.