Place dough in a bowl covered with a towel for about 1 hour before handling.
Preheat oven and cast iron in your oven as HOT as it goes! Mine was 550.
Pour dough onto a floured surface and cut into 2 equal pieces. Use one at a time. Roll a few times with a rolling pin then start using your hands. Take your finger and thumb and create a crust around the edges just squeezing and turning the dough in a circle. Once nice and thin set aside.
Remove hot skillet from oven and carefully add in dough and stretch to fit the pan.
Place in oven for about 3-5 minutes!
Remove from oven and add on toppings. Start with a thin layer of sauce, mozzarella cheese, pepperoni, and a little Parmesan cheese. Place back into the oven for 10 minutes.
Remove from oven top with basil and serve!