Line a cutting board with parchment paper and gererously dust with flour. Scrape dough out of the bowl with a spatula onto the floured surface.
With well-floured hands, fold dough in half, then fold in half again. Dust dough generously with flour, lift it up and form a ball in your hands.
Sprinkle parchment paper with more flour, extending about 1" past the border o the dough since it will expand. Place dough over the flour, seam side down, and let it rise uncovered at room temp 40 minutes.