The dates can be stuffed and rolled with bacon and then placed in an airtight container into the freezer. This makes for a quick make a head appetizer.  They will just take a bit longer to bake if they are frozen. Brush them with the maple syrup before putting them into the oven. They can be made up to 8 hours ahead of time and kept in the refrigerator before baking. Store any leftover baked dates in an airtight container in the refrigerator.