Preheat your oven to 350 degrees F and grease a 12-cup muffin tin with non-stick spray or melted butter. Set aside.
Unroll your tube of crescent roll dough and pinch together the seams to create one sheet. Lightly roll over the dough with a rolling pin to make sure the seams stick together.
Evenly spread 2 tbsp of softened butter on the dough, then sprinkle 2 tbsp of cinnamon sugar on top of the butter, making sure to gently press it into the dough.
Starting with the long end of the dough, tightly roll into a log. Using a sharp knife, cut the log in half, creating two shorter logs.
Cut each of the shorter logs in half lengthwise to reveal the inside of the layers. Now you’ll have 4 sections of dough.
Repeat with remaining two tubes of crescent dough, until you have 12 sections.
Working one by one, roll each section into a spiral shape (like a cinnamon roll) and place in your prepared muffin tin. Repeat with the 11 remaining sections.
Bake for 20-22 minutes, then let cool in the pan for 5 minutes.
While still warm, roll each cruffin in the remaining cinnamon sugar and enjoy!