Potato Pizza

It's vegan! It's pizza! There's no cheese or sauce!

This dish breaks every pizza rule known to man* to be some of the most delicious pizza out there. Make it weekly!(makes two large pizzas)

Ingredients:
1 cup extra virgin olive oil (I don't know that I actually use this much....I certainly don't measure it out beforehand, but everything is somewhat doused in olive oil, so make sure you have a decent quantity of it on hand)
3 1/4 cups flour
1 1/2 tsp. active dry yeast
3/4 tsp. sugar
Salt
6 medium yukon gold potatoes
1/2 medium onion, peeled and cut into 1/2'' pieces
2 tbsp. fresh rosemary leaves

Directions:
1. Grease a large bowl with 1 tbsp. olive oil and set aside. Put flour, yeast, sugar, and 1/2 tsp salt into the bowl of a standing mixer fitted with a dough hook and mix on lowest speed until well combined. Increase speed to medium-low and gradually drizzle in 1 3/4 cups cold water, mixing until a dough begins to form, about 1 minute. Stop mixer and scrape down sides of bowl with rubber spatula. Continue mixing on medium-high speed until dough in smooth and elastic and cleanly pulls away from sides of bowl, 10-12 minutes more. (This part always seems interminably long to me, but I try to let the machine do it's work. I have a theory about the adding cold water vs. warm water (more usual when using yeast) means that you need to create heat in the dough so the yeast can do its thing, but this dough does tend to turn out differently than normal joy of cooking pizza dough.) Shape dough into a ball, transfer to oiled bowl, and roll dough around in bowl to coat all over with a thin layer of oil. Cover bowl with a clean, damp dish towel and set aside in a warm spot to let the dough rise until doubled in bulk, about 2 hours.

2. Meanwhile, peel and very thinly slice potatoes on a mandoline (food processor also works, though I cut them by hand for a long time. The thinner the better.) or with a very sharp knife, transferring them to a large bowl of ice water as sliced (to prevent discoloration.) Soak potatoes for 30 minutes to remove excess starch, then drain in a colander. Repeat soaking and draining process 2 more times. Set colander over a large bowl (or in the sink). Toss potatoes with 1/2 tsp. salt and set aside to drain for 10 minutes. Transfer potatoes to a medium bowl. Add onions and 1 tbsp. of the oil, toss well, and set aside. (The repeated soakings soften up the potatoes so they cook faster...it's time consumimg, and the sad reason why this isn't an "after work" meal.)

3. Preheat oven to 475 F. Grease two large (about 13'' by 17'') cookie sheets with (though pans with sides work well too. Keren's inch-deep pan was the best one I've ever used for this recipe.) with 2 tbsp. of the oil each and set aside. Transfer dough to a lightly floured surface, divide in half, and shape each into a rectangle. Transfer each piece of dough onto a cookie sheet. Using your hands, gently flatten and spread dough out to edges of cookie sheet into a very thin rectangle. (Dough will shrink back a bit each time you spread it out,, so let dough rest or "relax" for 10-15 minutes each time after you've spread the dough out as far as it will go.) Brush each dough with 2 tbsp. of the oil. Evenly spread half the potato-onion mixture over surface of each dough, leaving a one-inch border around the edges. Season to taste with salt, drizzle remaining oil over each, and sprinkle each with half the rosemary. (I've found it's important not to layer the potatoes too thick. A thin layer will cook more evenly and before the dough starts to become too cooked. Also, leaving the assembled pizzas to sit for a while allows the dough to rise a bit more, which makes the crust even more full of air bubbles and deliciousness.)

4. Bake pizzas until crust is crisp and dark golden brown around the edges and potatoes are ringed golden brown, about 20 minutes, rotating cookie sheets halfway through baking. Transfer pizzas to a cutting board and serve at room temperature (or just cut on the tray and enjoy immediately. A little burned roof-of-the-mouth never killed anybody!)

(Next person who makes it puts a picture up!)
*An American person.