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How to Make a Monster Truck Cake

Learn how to make the easiest Monster truck cake that your kids will LOVE.

If you have young monster truck fans you want to impress, they will adore this chocolate “muddy” version of a monster truck cake with their favorite Monster Jam truck (the Grave Digger, etc.) at the finish line for the win!

This makes a great birthday cake idea for boys AND girls- even those big kids who love their trucks!

And you won’t have to hire a cake designer to make this cake.

It’s easy peasy.

I’m not exaggerating when I say this is probably the easiest fancy birthday cakes that I’ve made yet!

One huge reason why its easy: the messier and more imperfect – the better! You’ll see why when you read the tutorial…

Get the kids involved too.

It’s a perfect project to show your kiddos how creative and fun baking and cake decorating can be. And you’ll have fun together as a bonus!

My son (the birthday boy) loved crushing the cookies, and sprinkling them in the “mud” chocolate. He also enjoyed putting the Chocolate malt ball “rock boulders” in place.

If you want more super easy birthday cake ideas, check out our other cakes, like:

Grave Digger Cake

Chances if your making this grave digger cake, you already have this popular toy truck. You can use this toy as a cake topper on this cake- simple!

If you don’t have to grave digger, any monster truck will do.

How to make Chocolate “Mud” Cake Topper

To make a part of the top of the cake look muddy (like in a Monster Jam), we used the Oreo cookies (with the white middles removed) and crushed them up into small pieces.

This part was super fun for my 5 year old – no adult help required. Even though I wanted to jump in and join the fun- I restrained myself and let the kids do their thing.

My son took a small potato masher to crush the Oreo cookies in a bowl. This technique worked well for the kids.

You can do it this way or just chop them up in a food processor. Just make sure you don’t crush them too fine – you want “chunky” texture for a muddier look.

Birthday Cake Ideas for Boys

Making birthday cakes for kids is super fun and with the right tutorial can be surprisingly easy, fun and gratifying- even if you’re NOT a cake decorator or even baker.

Not to mention, it makes cakes that much more special to the special birthday boy!

If you are looking for more easy ideas, check out Marybeth’s (from babySavers) awesome list of 10 birthday cake ideas for boys. There’s lots of inspiration in that list, be sure to check it out!

Now, on to the step by step tutorial /recipe on how to make this grave digger birthday cake!

Yield: 1

How to make a Monster Truck Cake

monster truck birthday cake

Make this super easy Monster Jam cake for Grave Digger / Monster Truck fans, big and small! Uses cake mix and premade icing to make it even faster and easier.

Prep Time 5 minutes
Cook Time 30 minutes
Additional Time 20 minutes
Total Time 55 minutes


  • Boxed cake mix (Betty Crocker, Dunkin Hines)
  • Vanilla Icing
  • Chocolate Icing
  • Green Food Color
  • Box of Oreo cookies
  • Chocolate Malt Balls
  • 2 round 8" or 9" cake pans
  • Optional:
  • Monster truck decorations (Grave Digger toy truck, birthday number cake topper, finish line flag cake topper)


1. Mix the boxed cake mix according to instructions on the box. Divide the batter into 2 8" or 9" round cake pans. Bake according to instructions

2.Once cakes are cooled, stack them on top of each other on a cake stand or cake plate.

3. Using a knife, cut out a shallow piece from 1/4 of the cake (as shown in the picture below) Once the cake is done, it will give the effect that the monster truck is going up a hill.

how to make a DIY monster truck cake

4. Mix your vanilla icing with some green food coloring. Start out with a few drops of food coloring and mix. Add more to get a tint of green that you like.

Remember, a little food coloring goes a long way, and its always best to add incrementally, so that your color isn' too dark.

how to make green icing

5. Take your green food coloring and ice the entire cake (but leave out the area you cut out in step 3). To ice you can use a butter knife or a baking spatula.

Dont worry if bits and pieces of your cake crumble off as you ice. The beauty of this monster truck cake is that its suppose to look "messy" and "muddy" so you can't go wrong.

DIY monster truck cake

6. Using the chocolate frosting, frost the part your cut out in step 3. Optional: IF you want you can also use the chocolate icing to ice a bottom border around the cake. This will give effect of muddy road the monster truck climbed.

monster truck birthday cake easy

7. Take your oreo cookies and remove the white icing from the middles.

Crush the cookie only pieces using a potato masher in a bowl. (or put them in a giant ziploc back and "hammer" them with a rolling pin)

crushed oreo cookie mud cake topper

8. Sprinkle the crushed orea pieces on the chocolate frosting any way you wish.

monster truck birthday cake round

9. Finish off by adding your chocolate malt balls (to mimic big rock boulders) in chocolate icing.

You can then add your Grave Digger monster truck (or any other truck your have) climbing the chocoalte muddy path to the finish line.

Optional: Add in finish line flags and birthday number.

monster jam cake

DIY monster truck birthday cake


You can use a couple of toy cars and place the beneath the monster truck - a la Monster jam! Have fun with it and add whatever else you think your Monster Truck fan will love!

To get even more cool monster truck cake ideas, checkout Pinterest!

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 257Total Fat: 5gSaturated Fat: 2gTrans Fat: 0gUnsaturated Fat: 2gCholesterol: 6mgSodium: 385mgCarbohydrates: 52gFiber: 1gSugar: 33gProtein: 3g

Did You Make This?

Please leave a comment on the blog or share a photo on Pinterest

For fun here are some extra pictures of the monster jam birthday cake we made

monster truck birthday cake
monster jam birthday cake
boy cake ideas
monster truck cake ideas
grave digger birthday cake
grave digger cake

Hope you enjoyed this monster jam birthday cake tutorial! Enjoy your cake, mud never tasted so good!

Until next time, stay nifty!



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Monday 6th of November 2023

Hi, this turned out really well! My twins were having a unicorn-monster truck themed party so I adapted this by making the monster truck mud area not too big. Rather than green I kept the creamy vanilla buttercream colour and decorated that part with a unicorn toy and white chocolate buttons. As I had less space and smaller scale trucks I crumbled up some of the cut off cake and mixed it with chocolate chips for the mud and rocks. Thanks for the idea!

Jasmine Dhillon

Tuesday 9th of January 2024

Hi Natasha,

WoW!! That sounds like an incredible cake :) Im sure your twins adored this lovely cake made by their mom! Thanks so much for sharing your version and ideas.

Cheers, Jasmine


Thursday 14th of September 2023

Hi there, what kind of icing did you use for this cake? Thanks

Jasmine Dhillon

Tuesday 9th of January 2024

Hi Hilary,

I used basic whipped buttercream frosting from the can (Betty Crocker) which you can get at the grocery store. I added a couple of drops of green food coloring to give it to the color.

Cheers, Jasmine

Sweet E's Bake Shop

Thursday 27th of July 2023

This monster truck cake is truly impressive! The step-by-step instructions provided in the post are great at giving directions, making it achievable for anyone to create this incredible cake. Thanks for sharing this wonderful idea!

Sweet E's Bake Shop ( )

Jasmine Dhillon

Thursday 27th of July 2023

Thank you so much for your kind words, it means a lot! And so glad you found the instructions helpful. Happy baking !! :) <3

Cheers, Jasmine


Wednesday 22nd of June 2022

Hi Jasmine, I’m going to try to make your cake next weekend! Just wonder what the benefit of splitting the cake mix in two is? Thanks


Thursday 4th of August 2022

@Jasmine Khinda, Hi! Just wondering how far in advanced you think I could get away with baking and storing this ;) Thanks!

Jasmine Khinda

Monday 25th of July 2022

Hey Jessie,

Thank you for the question! The benefit of baking 2 cakes is so you can add icing/buttercream to the centre of the cake so it tastes better and not just all cake. And the cake height is also taller with 2 cakes stacked, opposed to making a single cake. Hope that answers your question.

Cheers, Jasmine

Crystal Lett

Thursday 28th of April 2022

How many boxes of cake mix did you use?

Jasmine Khinda

Wednesday 4th of May 2022

Hi Crystal,

I used 1 box of cake mix divided into 2 round pans. Hope that helps.

Cheers, Jasmine

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