In a small saucepan, whisk together maple syrup, arrowroot starch, and cocoa powder.
Add coconut cream and stir to combine.
Heat over medium heat until simmering. Don't bring to a boil, because it will boil over!
Whisk till the mixture starts to thicken. Add vanilla extract and salt and continue whisking till combined.
Remove from heat. Pour into a heat safe bowl and refrigerate overnight. Pudding will thicken as it cools.
Take pudding out of refrigerator. Stir in coconut whipped topping (about 4 cups) till well combined.
Pour pudding mixture into a 9x9 baking dish.
Grind up oreos to make the "dirt". I used a food processor, which is easiest, but you can also crush them in a ziploc if necessary.
Pour oreo crumbs over the top of pudding. Sprinkle chocolate sprinkles over the oreos to make it look a little sparkly and more realistic.
Using orange frosting, decorate the tombstone cookies as desired. Place the cookies and the zombie hands in the pudding to create your graveyard. Sprinkle some pumpkin sprinkles around as a finishing touch.
Keep graveyard dirt cake refrigerated until ready to serve.