The Bojon Gourmet

Sourdough Crust:
2 Combine the starter, water and flour in the bowl of a stand mixer fitted with the paddle attachment. Mix on medium-low (speed 3) until combined, then knead for five minutes. Sprinkle on the salt and knead on 3 for 12 minutes. The dough should be soft, but pull away from the sides of the bowl as it is kneaded. If it seems dry or stiff, dribble in water by the teaspoon until it softens up. For overly wet dough, add flour by the teaspoon until is comes away from the sides of the bowl.
3 Scrape the dough onto a lightly floured surface and knead by hand for 5 minutes or so to adjust the final consistency. The dough should feel soft and springy, slightly tacky but not overly wet or sticky. If you round it into a boule, it should softly schlump out and flatten slightly, not sit up high in a pert round, or sploosh out into a flat mass.
4 Place the dough in a lightly oiled bowl or container and let rise until doubled in bulk, about 4 hours.
5 (Optional: turn the dough out onto a lightly floured surface and, pressing out as little air as possible, fold the four corners of the dough into the center, making a square parcel. Place the dough back into the container, and let it hang out in the fridge for a few hours to a couple days. Bring the dough back to room temp before shaping, which takes about 2 hours.)
Toppings:
8 Press or mince the garlic into a small bowl and add 3 tablespoons of the olive oil. Set aside.
9 Heat a large skillet (well-seasoned cast iron or stainless steel, preferably) over medium-high. When the pan is hot, add just enough mushrooms to cover the bottom. Let cook without disturbing for several minutes. When the mushrooms have dropped some liquid, carefully pour it off (into a jar to save for doing something else with later.) Continue to cook the mushrooms in this manner, pouring off the liquid as they cook, turning occasionally, until the mushrooms are done to your liking. They should be tender but still have a bit of bite. Remove the mushrooms to a separate bowl or plate and repeat with the remaining mushrooms. Season the cooked shrooms with a few pinches of salt.
10 When the mushrooms are done, wipe out the skillet and add the remaining tablespoon of olive oil. Saute the shallots over medium heat until tender, translucent and golden, 10-15 minutes. Season with a few pinches of salt and let cool.
Make the pizzas:
13 An hour before baking, place a rack in the bottom position of the oven and place a baking stone on top. Preheat to 500º.
14 Gently plop the dough onto a lightly floured surface, leaving as much air in the dough as possible. Using a sharp knife or bench scraper, cut the dough into even-ish thirds. Tuck the ends under to form loose, rounded boules, and cover the boules with a damp cloth. Let the dough rest for 10 minutes or so (this will relax the glutens, making the dough easier to pull into a flat round).
15 Uncover one boule. Begin to gently press, pull and stretch the dough into a 12" round. I like to pick it up and drape it over my fists, letting its own weight stretch it out. If the dough resists stretching, let it rest some more until it stops fighting you. The last thing you want is to tear the dough, so be patient and it will eventually cooperate.
16 When the dough is mostly stretched, lift it onto a piece of parchment paper placed on your pizza peal. Trim the edges round so that they don't burn in the heat of the oven.
17 Layer a third of each of the topping ingredients onto the dough, leaving a 1/2" boarder: shallots and shrooms, then mozzarella and goat cheese.
18 Slip the pizza, parchment and all, onto the stone in the oven. Bake for about 15 minutes. The dough should be lightly golden on the bottom and edges, and the cheese should be browned in places. (You can form your next pizza while the first one bakes.)
19 Use a pair of tongs to pull the pizza off the parchment and back onto the peal, then slide it onto a large cutting board. Brush the crust with garlic oil, and drizzle a little over the top. Sprinkle with the freshly chopped herbs. Cut into 8 wedges and serve. Repeat the whole process with the remaining pizzas.