Preheat oven to 400°. On a lightly floured surface, unfold puff pastry. Cut into thirds along the fold lines.Advertisement
In a food processor, combine cranberries, dates, brown sugar, walnuts and pumpkin pie spice. Cover and pulse with several on/off turns until finely chopped.
Spoon cranberry mixture evenly down the center of each puff pastry portion, all the way to each end. Brush one lengthwise side of each dough portion with water. Roll up each portion towards the moistened end and pinch edges to seal. Cut each portion crosswise in nine pieces. Place each piece, seam side down, on a baking sheet. Brush tops with butter. Bake 15 minutes or until golden brown.