Pre-heat oven to 400 degrees. In a large bowl, combine mozzarella and parmesan cheeses. Transfer the mixture to a 10-inch cast iron skillet. Make a small well in the center of the cheese, then pour the marinara into the center.
In a medium bowl, combine butter and next 4 ingredients. Add pizza dough balls a few at a time, rolling them in the butter mixture to prevent sticking.
When all the dough balls have been coated with the butter mixture, place the balls around the outside edge of the skillet, allowing some space for rising.
Place skillet in the oven and bake for 25 minutes or until cheese is melted completely and dough balls are golden brown. Remove skillet using a hot pad holder. Be careful, as pan handle will be very hot. Place skillet on a trivet and serve topped with fresh basil and more parmesan cheese.
Use a fork to dip the balls into the cheese and sauce. Enjoy