First, remove the silver skin from the back of the ribs and pat them dry with a paper towel.
Mix together the brown sugar, kosher salt, paprika, garlic powder, black pepper, onion powder, and Italian seasoning in a bowl to make a flavorful dry rub.
Cut the ribs in half so they can fit into the sous vide bags and then generously rub the BBQ rub all over the ribs.
Vacuum seal the dry-rubbed ribs in a sous vide bag using a vacuum sealer or you can use the water displacement method to remove as much air from the bag as possible.
Cook the ribs in a sous vide bath that's maintained at 165°F / 74°C for 4-8 hours using a sous vide machine. This method of cooking makes the ribs incredibly tender.
Carefully remove the sous vide baby's back ribs from the vacuum bag, reserving the juices. Pat the tender ribs dry with paper towels and then place them in the fridge to cool down. Doing this keeps the ribs safe to eat by preventing any bad germs from growing. It also helps the ribs stay delicious and not too mushy.
Preheat the oven broiler on high heat and line a rimmed baking sheet with aluminum foil.
Place the cooled ribs onto the baking sheet and brush them on both sides with 1⁄4 cup of your favorite BBQ sauce. When broiling, I like starting with the bone side up.
Broil them for 1-2 minutes until they are lightly charred. Flip the ribs over and broil the other side for 1-2 minutes to caramelize on the outside.
Remove the rack of ribs from the oven, tent foil loosely over them and let them rest for 10-15 minutes to redistribute juices.
Slice your amazing bone-tender sous vide pork ribs between bones and serve them immediately with more BBQ sauce if that's what you prefer.