Momomaniacs can now go straight to the source for Christina Tosi's whimsical desserts. The pastry maven converted a former storage room of her 11,000-square-foot Williamsburg commissary into a storefront. Early-adoptertypes can preview products still in development, while the risk-averse can dig into the outfit's signature goodies, including Crack Pie, Compost Cookies and cake truffles. Among the savory options, find riffs on Momofuku's signature buns—one made with pulled-pork shoulder in lieu of belly, and a forthcoming veggie option with caramelized onions, pea shoots and scallions, both piled with hoisin and pickles. The spot is still working on its liquor license—so the boozy milk shakes haven't made their way across the bridge—but you can sip on cereal and raspberry-lemonade-flavored shakes in the meantime.