Make the ultimate simple dough through the first rise (through step 4).
Generously grease two 9-inch pie pans or one 9x13-inch baking pan.
Prepare filling: In a small bowl, combine brown sugar, cinnamon, nutmeg, and salt.
On a lightly floured work surface, roll the dough out into a 9x15-inch rectangle.
Brush the melted (filling) butter all over the dough, leaving a 1/2-inch border along the edge. Sprinkle the cinnamon-sugar mixture evenly over the buttered dough. Add the apple pieces in an even layer. Drizzle the caramel all over. Starting with the long edge, roll the dough up tightly then press the seam to seal. Use a sharp serrated knife or unscented dental floss to slice into 12 equal pieces. Place in prepared pan(s).
Loosely cover and allow to rise for 30 minutes to 1 hour, or until puffy.
Preheat oven to 350°F.
Bake for 25 minutes, or until golden brown.
Drizzle the caramel over the warm rolls. Enjoy!