how to fill cream puffs the next day
Bake until puffs rise and are golden brown, about 30 minutes. Let cool on sheets on wire racks. Puffs can be stored at room temperature for up to 1 day. Transfer pastry cream to a pastry bag fitted with a 1/8-inch plain round tip. Insert the tip into the opening of each pastry, and pipe to fill with pastry cream. Serve immediately.