Place 10-inch cast iron skillet in the lower third of the oven. Heat to 425 degrees with pan in the oven. Heat for at least half hour prior to baking.
Stretch the pizza dough into a 10-inch circle, avoid a rolling pin as this will remove the air bubbles that give great texture. Carefully remove the skillet from the oven, gently placing the crust in the pan.
Spread with sauce, top with mozzarella cheese and then cooked tater tots. Brush exposed crust with olive oil.
Bake for 10-12 minutes or until the cheese has melted the edges are golden brown.
While the pizza is baking make the sauce.
Add the melted butter, flour, cornstarch, beer, cheddar cheese and milk to a blender. Blend on high until well combined. Add to a pot over medium high heat until thick and bubbly. Salt and pepper to taste. (If you encounter any issues with the texture, just re-blend until smooth).
Once the pizza is cooked, remove from oven, top with beer cheese sauce, sprinkle with cilantro, chopped bacon and pickled jalapenos.