This kitty litter cake looks shockingly realistic with its crumbled “litter” and chocolate “surprises,” but beneath the icky exterior is a soft, moist dirt-style cake made from baked cake, instant pudding, crushed cookies, and Tootsie Rolls. It’s a perfect gross-but-delicious choice for Halloween parties.
Why this recipe works
Though the concept may sound gross, this recipe reliably delivers on both flavor and visual impact. It’s essentially a classic dirt cake: baked cake crumbled and combined with instant pudding and crushed vanilla sandwich cookies, then finished with Tootsie Rolls shaped to resemble “surprises.” I’ve made this several times over the years and it’s always a conversation starter at Halloween gatherings.
The realistic look comes from two simple details: using two differently colored cake mixes (for contrast) and tinting a small portion of the cookie crumbs with green food coloring to mimic the little green flecks you sometimes see in cat litter. The more accurate the look, the better the presentation for a spooky or deliberately gross theme.
Ingredients you will need
All measurements and a printable recipe card appear at the end of this post. The core ingredients are prepared cake (two flavors), instant vanilla pudding, vanilla sandwich cookies (crushed), green food coloring, and small Tootsie Rolls.
Ingredient info and substitution suggestions
Cake: Choose two contrasting cake mixes such as yellow plus chocolate or white plus chocolate. The color difference helps create a more realistic “litter” appearance.
Cookies: Golden Oreos work great, but any vanilla sandwich cookie will do. Crushed cookies provide the sandy, granular texture.
Pudding: Use instant vanilla pudding for the best texture. Other instant flavors can work, and pistachio pudding can be a fun alternative.
Serving: For the full effect, serve the cake in a brand-new, washed small kitty litter box and offer a new scooper for guests. Choose a shallow box so the cake fills it nicely — the photos here were made in an 18x14x5 box.
How to make kitty litter cake
Step-by-step photos below illustrate the process. Scroll to the printable recipe at the end for exact measurements and a condensed instruction card.
- Prepare both cake mixes according to package directions and bake (13×9 pans work well). Allow cakes to cool completely before handling.
- Mix the instant vanilla pudding and chill until you’re ready to assemble.
- Pulse the vanilla sandwich cookies in a food processor in small batches until finely crumbled. Reserve about 1/4 cup of crumbs for tinting; set the rest aside.
- Mix a few drops of green food coloring into the reserved 1/4 cup of crumbs until evenly tinted green. This creates the small green flecks that make the cake look like real litter.
- Once cooled, crumble the baked cakes into the cleaned litter box. Toss with half of the remaining cookie crumbs and add just enough chilled pudding to moisten the mix—don’t make it soggy. Combine gently until evenly coated.
- Soften three unwrapped Tootsie Rolls in the microwave until pliable, shape the ends so they curve naturally, and press them into the mixture in a few spots. Repeat with three more to create multiple “surprises.” Sprinkle the remaining cookie crumbs over the top.
- Lightly scatter the green-tinted crumbs over the top to mimic the chlorophyll specks often found in cat litter.
- Heat three more Tootsie Rolls until nearly melted, scrape them over the cake and sprinkle with cookie crumbs for a melted-chocolate effect.
- Arrange the remaining Tootsie Rolls over the surface. Heat one until pliable and drape it over the side of the box for an extra realistic touch. Serve with a new scooper for guests to dig in.
Frequently asked questions & expert tips
Cover leftovers tightly with plastic wrap and refrigerate. The cake will keep for up to 4 days.
Yes — assemble the cake a day ahead, wrap the top with plastic wrap, and keep it in the refrigerator until shortly before serving.
Serving suggestions
Serve the cake slightly above chilled temperature. If refrigerated, remove it 30–40 minutes before serving so it softens a bit. This lets the pudding and cake show their best texture while keeping the novelty presentation intact. Happy Halloween!
More Halloween recipes
- Halloween Dirt Cups
- Witch Finger Cookies
- Spider Web Taco Dip
- Jalapeno Popper Mummies
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Kitty Litter Cake
Tip – Helpful FAQs are included in the main post above; scroll up for quick answers.
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Ingredients
- 15.25 ounce chocolate cake mix prepared
- 15.25 ounce yellow cake mix prepared
- 5.1 ounces vanilla instant pudding mix one large box, prepared
- 25 ounces vanilla sandwich cookies such as Golden Oreos, crushed
- Green food coloring
- 15 small Tootsie Rolls
Things you’ll need
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small kitty litter box (brand new and washed)
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small scooper
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food processor
Before you begin
- Choose two cake flavors for visual contrast; prepare both according to package directions.
- Cake mix weight varies by brand and year; small differences in weight won’t affect the final result.
- Use a shallow, appropriately sized new kitty litter box that will fit the amount of cake you’re making. Wash thoroughly before use.
Instructions
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1. Prepare and bake both cake mixes according to package directions. Cool completely.
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2. Prepare the instant pudding and chill until assembly.
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3. Pulse the sandwich cookies in a food processor until finely crumbled. Reserve about 1/4 cup for tinting.
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4. Tint the reserved crumbs with a few drops of green food coloring and mix until evenly colored.
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5. Crumble cooled cakes into the clean litter box. Toss with half the remaining crumbs and enough chilled pudding to moisten—not soak—the mixture. Combine gently.
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6. Soften three Tootsie Rolls until pliable, shape the ends, and bury several throughout the mixture. Sprinkle the top with the rest of the cookie crumbs.
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7. Scatter the green-tinted crumbs lightly over the top for realistic detail.
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8. Heat three more Tootsie Rolls until almost melted and scrape them over the surface, then sprinkle with crumbs. Arrange remaining Tootsie Rolls and drape one over the rim for effect. Serve with a new scooper.
Expert tips & FAQs
- Store leftovers tightly wrapped in the refrigerator for up to 4 days.
- This dessert can be assembled a day ahead; cover and refrigerate until ready to serve.
Nutrition
Recipes on this site are tested in a conventional gas oven; oven performance varies, so use an oven thermometer if needed and adjust times for different appliances.
This kitty litter cake originally appeared here on October 30th, 2011 and has been updated with new photos and tips.
