In a large bowl, add all the pizza dough ingredients and mix by hand.
Once you have a sticky ball, remove it from the bowl and start kneading it on a clean flat surface. Scrape any dough that sticks to the bowl or flat surface and continue kneading until you have a smooth non sticky dough ball. This will take 7-10 minutes.
Place the dough ball back in the bowl and cover with a clean kitchen towel or plastic wrap.
Leave the covered bowl at room temperature for 2-3 hours, until the dough doubles in size. Halfway through, remove the foil and stretch and fold the dough over itself.
Oil the bottom and sides of a 12" cast iron skillet and transfer the dough from the bowl to the skillet.
Stretch the dough as best as you can to cover the bottom, cover with plastic wrap, and let it set at room temperature for another hour. The dough will stretch on its own and will cover the bottom of the skillet.
Pizza Time
Preheat the grill or oven to 500 degrees.
Remove the plastic wrap from the skillet and place it in the oven for 10 minutes to pre cook the dough.
Remove the skillet from the oven and add the cheese, sauce and pepperoni.
Place the skillet back in the oven and cook for 8-10 minutes, until the cheese is melted and the top is golden brown.
Remove the skillet from the oven and run a butter knife around the edge to help release it. Remove the pizza from the skillet and let it cool for a few minutes on a flat surface.
Slice, serve and enjoy!
Notes
You can also make this in a kitchen aid mixer if you have one handy. Let the mixer knead the dough until it becomes plump and bounces back when poked. Scrape the dough from the bowl and shape it into a ball.
Pre-cooking the dough will help avoid sogginess inside and on the bottom of the pizza dough.
For convenience, pre-shredded cheese of any kind will work. Make sure to use soft cheeses since those melt best. Stay away from the hard Italian cheeses unless they are in addition to the base cheese option.
If you want the bottom of the pizza to be more crispy, finish with the skillet on the stove over medium-high heat for 5 minutes.