First, preheat the cast iron pan in a 500 degree oven. Also, place the pizza dough out on a surface with olive oil (to prevent sticking). Leave dough out for 20-30 minutes to rest so it is easy to work with.
Next, carefully take hot pan out of oven using oven mitts. Then add 3 tablespoons of olive oil to the pan. (I leave towel wrapped around pan's handle so do not accidentally touch it.)
Now, roll out the dough with your hands. Start pushing with fingers from center out on the dough. Then using gravity, pull dough so it gets slightly bigger then the cast iron pan (see video above).
Next, place the dough in the cast iron pan and push with your fingers to spread out to the edges of the pan.
Now, add marinara sauce, then cheese, and then pepperoni.
Next, add to oven on medium rack and cook 10 minutes.
Finally, tear basil and add alittle olive oil on top and enjoy!
