For Sliced Rugelach: On a lightly floured surface, roll dough into a 4- by 12-inch rectangle. Spread filling over surface of dough using an offset spatula, leaving a 1/2-inch border along the two 12-inch edges. Sprinkle bread crumbs evenly over filling. Starting at one 12-inch edge, tightly roll dough into a spiral. Aim to make at least 4 full revolutions but no more than 7, pressing seam firmly to seal. Place roll on baking sheet and freeze or refrigerate for at least 30 and no more than 45 minutes. (If chilled for longer, allow dough to warm very slightly at room temperature, so it will not crack when sliced.) Using a sharp knife, pastry wheel, or pizza cutter, cut roll into 12 cookies, each the shape of an isosceles trapezoid. Keep the smaller edge of the trapezoid no less than 1/2 inch in length, and the larger edge no more than 1 1/2 inches in length. Place seam side down on baking sheet and transfer to freezer for at least 20 minutes before proceeding. Alternatively, freeze hard and transfer to freezer bags or containers for up to 6 months; defrost in the refrigerator overnight to proceed.