Make Ahead Tip: The filling (Steps 1 & 2) can be made up to 2 days ahead and kept, covered, in the refrigerator. The dough (Step 3) can be made up to 1 day ahead. Store cookies in an airtight container for up to 3 days or freeze for up to 1 month.
Storage smarts: For long-term freezer storage, wrap your food in a layer of plastic wrap followed by a layer of foil. The plastic will help prevent freezer burn while the foil will help keep off-odors from seeping into the food.