Chocolate poke cake filled with creamy chocolate pudding and decorated as a spooky Halloween graveyard with Oreo dirt, Milano cookie tombstones, and ghost Peeps.
Preheat the oven to 350 degrees F and grease a 9x13-inch cake pan, set aside.
Mix together 16 ounces chocolate cake mix, 3.9 ounces chocolate fudge instant pudding mix, ½ cup sour cream, ¾ cup vegetable oil, ½ cup milk, 3 large eggs, 1 teaspoon vanilla extract, and ½ teaspoon salt in a large mixing bowl until fully combined. Transfer to the prepared cake pan. The batter will be thick, and you will need to use a rubber spatula to spread it out.
Bake for 28-32 minutes or until a cake tester inserted into the center comes out clean.
Let cool for 30 minutes and poke holes all over the cake with the handle of a wooden spoon.
Filling
Whisk together 3.9 ounces chocolate instant pudding mix and 2 cups milk for 2 minutes, then allow to thicken slightly.
Spread the pudding over the top of the cake all the way to the edges.
Frosting
In a large bowl or stand mixer fitted with a whisk attachment, whisk together 2 cups heavy cream, ½ cup powdered sugar, and ⅓ cup chocolate instant pudding mixuntil thick and fluffy.
Spread the frosting over the top of the cake all the way to the edges.
Topping
Add 16 Oreo cookies to a food processor and pulse until fine crumbs form. (Or place in a plastic Ziploc bag and crush with a rolling pin.) Sprinkle the Oreo crumbs over the top of the cake.
Write R.I.P. on 9 Milano cookies with black gel icing to make tombstones and then press them into the frosting so they stand up. Press 3 ghost Peeps into the frosting so they stand up.
If the Peeps have a hard time standing up, use a toothpick inserted into the bottom to secure each one. Just remind guests to remove them from their slice before eating.
Add 12 candy pumpkins near the ghosts and tombstones. Add Halloween sprinkles, if desired. Cut into 12 slices before serving.
Notes
This cake should be refrigerated within 2 hours after frosting or the frosting can get really dark and dense. It will keep covered in the fridge for up to 4 days.
The cake can be baked up to one day in advance and then frosted and decorated just before serving.
Shopping note: Buy 3 small boxes of instant pudding: 1 chocolate fudge, 2 chocolate.