In a large mixing bowl, whisk together the instant chocolate pudding mix with 2 cups of cold milk.

Stir for about 2 minutes until the pudding thickens. Let it sit for another 5 minutes.

While the pudding is setting, put the Oreo cookies into a large Ziploc bag. Crush them using a rolling pin or a food processor until they resemble coarse dirt.

Fold the whipped topping into the set pudding mixture until well-combined. This gives the pudding a lighter, creamier texture.

Fill each serving cup about halfway with the pudding mixture. Then add a layer of crushed Oreos.

Add another layer of pudding, followed by another layer of crushed Oreos on top.

Insert a few gummy worms into each cup so they look like they're crawling out of the dirt.

Add decorative chocolates or candies to represent tombstones, pumpkins, or other spooky items.

Optionally, sprinkle some green food coloring over certain areas to give a grassy look.

Refrigerate the cups for at least 30 minutes to let the flavors meld together. Serve chilled.