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Halloween Dirt Cake

Recipe by Sarah Fennel on InstagramAdded 6 November 2026.

15 minutes to prep. A fun Halloween‑themed dirt cake that layers rich chocolate cake with creamy chocolate frosting, then tops it with crunchy Oreo "dirt" and colorful gummy worms. The addition of matcha‑tinted crumbs gives a playful green moss look, making it perfect for spooky celebrations.

Free. No account needed.

Method

  1. Spread chocolate frosting evenly over the top of the chocolate cake in a rectangular pan.

  2. Combine crushed Oreos with matcha powder and a small amount of cocoa powder, then crush further to create green and brown "dirt" mixtures.

  3. Sprinkle the dark (brown) Oreo crumbs over the frosted cake layer.

  4. Press the crumbs gently into the frosting to create a textured dirt surface.

  5. Add additional green "dirt" (matcha‑colored crumbs) as desired for a mossy effect.

  6. Decorate the top with gummy worms for a Halloween‑themed finish.

Tips while you cook

Even frosting layer
Spread the chocolate frosting evenly over the cake before adding any crumbs.
Press crumbs into frosting
Gently press the Oreo crumb mixtures into the frosting.
Add green crumbs last
Add the matcha‑colored green "dirt" after the brown crumbs for a mossy effect.

Notes from ReelsMeals, based on this recipe's ingredients, times and method. They are not the creator's instructions.

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Sarah Fennel made this.

The recipe comes from Sarah Fennel’s Instagram reel. ReelsMeals wrote it down from the caption and the voiceover. Check the original if something looks off, and for anything about allergens.

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