In a large mixing bowl place warm water and yeast. Let set until frothy.
In a small saucepan melt butter and add milk and turn off. Make sure milk & butter are warm to the touch then whisk into yeast and water mix.
Cover and set in a warm part of your kitchen to double in volume.
Preheat oven to 400 when dough is ready.
When dough is ready turn onto a floured surface and press with fingers or use a rolling pin to form dough into a rectangle of about 15 inches.
Spread filling on dough evenly (as pictured above). Sprinkle diced apple and pecan peices on top, then with the long side, tightly roll into a log.
To evenly cut, cut in half, then each in half, and repeat until you have about 16-18 rolls.
Turn fire on low and melt the 2 tbsp of reserved butter (one in each iron skillet) along with 1 tsp of brown sugar in each skillet.
Place approximately 8 rolls in each iron skillet, and let set until they rise to double.
Place in preheated oven and bake for about 30 minutes or until golden brown.