Yes! In fact, I recommend preparing as much as you can before preparing your Halloween charcuterie board. For example, prepare the fruit and any chocolate-covered snacks the day before, and save the leftover chocolate to reheat later. Then, place each “section” of the board in wide or stackable tupperware so you know in which order to layer the items.  Example: Place any fruit and cheese pieces in one container with your hummus for one section of the board. Then, add any dessert items to another container for a second section of the board. Then, any remaining crackers, cheese, nuts, etc. can be added on the day of serving, and all you have to do is add the toppings! Easy peasy.