01 - Reserve the icing. Bake the whole cinnamon rolls completely according to their current package directions. Do not ice them.
02 - Let the baked rolls cool until easy to handle, then cut each into four pieces.
03 - Whisk eggs, milk, vanilla and cinnamon. Briefly dip each baked piece and let excess drip off; do not soak.
04 - Melt some butter in a skillet over medium-low heat. Cook coated pieces in an uncrowded layer, turning until all sides are set and the egg-coated centers reach 160°F. Allow roughly six to ten minutes per batch, adjusting heat as needed.
05 - Discard leftover raw egg mixture. Drizzle finished bites with reserved icing and add optional toppings just before serving.