In a medium-sized mixing bowl, use a whisk or hand mixer to cream together butter, sugar, and cinnamon.
3 tablespoons unsalted butter, softened, ¼ cup brown sugar, 1 tablespoon cinnamon
Peel and cut your apples around the core, then dice them into small pieces. Fold the apple bits into your butter/sugar/cinnamon mixture, and stir until evenly coated.
2 large apples, peeled and diced
Once your dough has doubled in size, add more flour to your surface and use a floured rolling pin to roll the dough out into a rectangular shape, roughly 9 x 12 inches.
Pour your apple pie filling onto your dough and use a spatula to spread it out evenly over the surface, leaving about 1/2 inch margin on all sides.
Working from the shorter side, use two hands to start to tightly roll your dough away from you, until you're left with a cylinder, about 12 inches long.
Slice your cylinder into 6 equal parts, about 2 inches wide to create 6 individual cinnamon rolls.
Add your cinnamon rolls to a baking dish (I used a 13.5-inch oval, but you can also use an 11.5-inch square or 13 x 9-inch rectangular dish), leaving about an inch in between each roll.
Cover with a clean kitchen towel and allow the rolls to rest for about 90 minutes or until they double in size. Note: You will notice some liquid in your pan from the juice in the apples, but that's okay! It will add moisture to your cinnamon rolls when the dough soaks it up. This should not cause them to be soggy.
Preheat your oven to 375°F and bake for 15-25 minutes until the tops of your rolls are golden brown.