Addicted to cinnamon buns or cinnamon rolls but don’t want to put in the effort of making and then double-proofing dough? This cinnamon roll cake recipe is your savior. Incredibly cinnamony, you get to savor the fiery sweetness in the moist, fluffy, and utterly buttery crumbs of the cinnamon cake, accented with just a hint of crunch from the topping.