The pork filling can be refrigerated overnight. The crêpe dumplings can stand at room temperature, covered, for up to 2 hours before reheating.
Tapioca flour is available at specialty food stores. Fried shallots are available at Asian markets.
are full of earthy, meaty-mushroomy flavor. Red Burgundy, which is made from Pinot Noir, often shares that earthiness. With this dish, go for the lighter bodied, more affordable bottlings simply labeled as Bourgogne.