Warm beer in saucepot over low heat. Transfer to bowl and add yeast. Mix in sugar, olive oil, and salt. Add flour and stir to combine with a spoon before switching to a soaking wet hand to finish squeezing and mixing the dough until it forms a cohesive ball. Cover and ferment at room temp for 15min. Perform a strength building fold as shown @2:06. Cover and ferment at room temp for another 15min.
Transfer dough into a well oiled/sprayed 12" cast iron (or split between two 8" square pans). With oiled fingers, press dough out to fill the shape of the pan. Cover and allow to rest for 10min.
Preheat oven to 550F/285C with baking stone or steel.
Use finger tips to press dough out into the pan the rest of the way.
Combine all sauce ingredients and pulse with an immersion blender until smooth, about 30 sec.
Spread 4-5 generous spoonfuls of sauce over the dough followed by ½lb or 250g of shredded mozz, then pepperonis (and any other toppings you'd like). Allow to proof on the counter for 10-15min then bake on top of baking steel for 16-18min.
