How to Make delicious slow roasted baby back ribs

If anything is worth the cooking time, its these ribs. To make them, you will need: 1 full rack of ribs, 1/2 cup brown sugar, 1 tablespoon salt, 1 tablespoon chili powder, 1 tablespoon red pepper flakes and 2 1/2 tablespoons cumin. To make the BBQ sauce, you will need: 16 pounds of ketchup (this makes a lot of sauce!), 4 cups cider or red wine vinegar, 4 onions, 2 pounds diced bacon, 1 cup brown sugar, 2 tablespoons chil powder, 3-4 pureed chipotle peppers, 1/2 cup molasses, salt and the zest of 2 limes.