Baby back ribs are from where the rib reaches the spine after the loin is removed. They're called "baby back" because of their size in relation to spareribs. Baby back ribs are very tender, and also lean. They tend to be more popular than spareribs, and come with a higher price. Spareribs, also known as St. Louis ribs are very meaty and come from the belly of the pig after the belly is removed. Spareribs tend to be a lot more affordable than baby back ribs, and often have a lot of fat which can make them incredibly delicious! The style of ribs you use is totally up to you, but it will affect the cooking time and nutrition facts. This recipe was designed with baby back ribs in mind.