8 Earthbound Farm Organic Heirloom Fingerling Potatoes (peeled)
2 tablespoons olive oil
1 large sweet yellow onion (halved through the stem end and sliced very thinly crosswise (about 4 cups))
    Pizza dough
    cornmeal (for sprinkling)
2/3 cup crème fraîche
2 cups grated truffled Pecorino cheese
    truffle oil
1 cup grated Parmigiano Reggiano cheese
2 tablespoons fresh thyme leaves