Caramel Apple Cinnamon Roll Mug Cake

"Soft fluffy dough, warm gooey apple inside, a caramel drizzle on top–this healthy Caramel Apple Cinnamon Roll Mug Cake is one cozy quick microwave treat you need to try this fall! This recipe is entirely vegan, gluten-free, oil-free, made with a combination of oat flour and tapioca starch for that doughy gluten-like cinnamon roll texture. And for an extra fall twist, the usual cinnamon filling has been replaced with a super simple blender apple butter. Extra caramel on top, a sprinkling of nuts, and in no time you will be diving into this fall snack feast!"