Preparation of Pudding Layers

1. In a bowl, whisk together the instant vanilla pudding mix with milk until thick. Let it sit for 5 minutes.
2. In a separate bowl, mix the pumpkin puree and pumpkin pie spice into the vanilla pudding until well combined.
3. Prepare the chocolate pudding by following the same method, or stir the premade chocolate pudding if using.

Crushing Oreos

1. Place the Oreo cookies in a zip-top bag and crush them with a rolling pin or use a food processor for finer crumbs.
2. Leave some larger chunks for more texture.

Make Green Coconut Grass

1. In a small bowl, mix shredded coconut with 1-2 drops of green food coloring until evenly colored. Adjust color if necessary.

Assemble the Cups

1. In clear cups, layer a spoonful of the pumpkin pudding first, followed by a layer of chocolate pudding.
2. Next, add the crushed Oreo cookies on top. Optionally, sprinkle the colored coconut grass and top with candy pumpkins and sprinkles.