I make spare ribs in the crock pot - to a point. I cut the ribs into 2-3 rib hunks. I put them in the crock pot with a cup of barbeque sauce mixed with about 1/2 cup water. I cook the ribs on low until they are almost done, about 4 hours. I take them out and put them in the oven in one layer, with more sauce to finish them. They could also be grilled, as they are mostly cooked at this time. If desired, you can rub the ribs first with the rub of your choice.