Preheat your oven to 350°F. This ensures that your rolls bake evenly and develop that golden-brown exterior.
Spray a 9- or 10-inch pie plate or a 9-inch square baking dish with cooking spray to prevent sticking. This is an important step, as it allows for easy removal of the rolls after baking.
Open the can of refrigerated crescent rolls. Carefully unwrap the dough, and if you find two triangles stuck together, keep them that way. This will help create a thicker roll.
Arrange the triangles or rectangles on a clean counter or work surface in one long row. Make sure to press the seams together, overlapping them slightly to close any gaps.
Generously spread Nutella over the entire surface of the dough, leaving about a ½-inch margin around the edges. This will ensure that every bite is filled with that delightful hazelnut goodness.
Sprinkle the cinnamon evenly over the Nutella. Feel free to adjust the amount based on your personal taste!
Starting from the short side, roll up the dough tightly into a log. You want to make sure it’s compact to maintain a good shape during baking.
Cut the log into 8 equal-sized pieces using a sharp knife or a bench scraper. A serrated knife works well for this task, allowing you to slice through the dough without compressing it.
Place the pieces into the prepared pan, noting that there will be some gaps between them; this is fine!
Bake in the preheated oven for about 12 to 15 minutes, or until the rolls have puffed and are just beginning to turn golden. Be careful not to overbake, as you want them gooey and soft.
While the rolls bake, prepare the glaze. In a small bowl, mix together the confectioners' sugar, melted butter, and vanilla until smooth. If desired, add a splash of cream or milk to achieve your preferred consistency.
Once the rolls are out of the oven, you can glaze them immediately while they're hot, allowing the glaze to melt into all the crevices, or wait a bit until they cool slightly.
Serve your Nutella Cinnamon Rolls warm for the best experience! They’re best enjoyed fresh but can be stored in an airtight container for up to 3 days.