Cinnamon Pull-Apart Bread based on this recipe from Joy the Baker. I'll admit, I cheated. I had to though - I just recently found the recipe, and of course I didn't have most of the ingredients on hand.
I ended up using frozen bread dough, and brown sugar instead of white. I can't believe I didn't have any sugar on hand - BUT...If my cheat version is any indication, as it's freakin' fabulously yummy. The original recipe will be out of this world. You need to make it!