Learn how to make this fun, easy robot cake. It’s perfect for birthdays and is made from a simple 9 x 13 cake. And isn’t it the cutest robot ever?!
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For his 7th birthday, our son wanted a robot cake. Well, actually he’s the indecisive type and that was what he finally settled on after lots and lots of deliberating.
And after getting numerous of his great ideas vetoed by me because I’m no birthday cake making expert and can’t handle anything that’s too complicated. (Am I the only mom that does that?!)
But when he finally did decide that a robot birthday cake is what I should make, I was kind of excited, because it sounded like a fun idea…and it was!
And didn’t our Mr. Robot turn out to be quite cute? We sure thought so!
Want to make your own easy robot cake? All you need is a basic 9 x 13 cake pan plus a few other simple tools and ingredients and you’ll be set to make a cake that is sure to bring a smile to any birthday child’s face!
Let me show you how!
How to Make a Robot Cake
Supplies Needed:
- 9 x 13 Cake Pan- I really like this one
- Serrated Knife- I used my favorite bread knife
- Cake Board– optional, but handy to place the cake on
- Pancake Turner– to move cake pieces
- Mixing Bowl– I have the Pampered Chef version of this and use it all.the.time!
- Food coloring- I prefer the food coloring gels because they mix in nicely
- Small Sized Blade Ultra Spatula– makes it easy to frost the cake nicely
Recipe Ingredients:
- cake mix or homemade cake recipe of your choice
- Icing of your choice- I love this buttercream frosting recipe
- 2 Oreo cookies
- 18 chocolate-covered mini donuts
- lollipop
- M&M’s
Recipe Directions:
1. Mix up the cake and bake in a 9 x 13 cake pan, according to the recipe you use. Once the cake has cooled, invert the pan and carefully remove the cake from the pan.
Flipping it onto parchment paper or saran wrap will help reduce the mess.
2. Using a serrated knife, cut the cake into 5 pieces as shown.
3. Arrange cake on a cake board -I covered mine with tin foil-, using piece #2 for the robot’s head and piece #4 for the body. Place a chocolate-covered doughnut between the 2 pieces to create a neck.
Tip: Using a pancake turner to move pieces around works really well!
4. Cut piece #5 into feet. I trimmed off the rounded end part and then cut what was left in half. Then I simply trimmed off one corner of each half to make a shoe shape. Place 6 chocolate-covered doughnuts below the body to create legs, then position the shoe pieces at the end.
(You will not need pieces #1 and #3. I went ahead and frosted them and we enjoyed them for dessert.)
5. Using your mixing bowl, mix up your frosting, then add food coloring to get the desired shade and color.
If you use dark-colored M&M’s for decoration, you will want to keep the frosting color light.
6. Remove the doughnut “neck” and “legs”, then frost the cake. I like to do a really thin first coat of frosting to “seal” in the crumbs and then go over it all again with a thicker second coating.
Carefully push the doughnut “neck” and “legs” back into place, touching up the frosting as needed.
7. Gently push 3 M&M’s into each shoe, creating “buttons”.
8. Take 2 doughnuts and cut out a small notch to create a hand as shown in the picture above. Then arrange 10 doughnuts, 5 on either side, to create arms, placing the “hand” doughnuts at the end.
9. Decorate the robot’s head. To make the eyes, carefully pull Oreos apart, leaving all icing intact on one cookie, then add a brown M&M. The remaining Oreo cookie halves will become the ears.
Shape a smile out of M&M’s. Finally, add a doughnut with a lollipop pushed through the center to the top of the head.
10. Decorate the body, using different colored M&M’s to create your design. I found it helpful to arrange my M&M’s in the pattern I wanted, before putting them on the cake.
Additional Helpful Tips:
- Lining your pans with parchment paper makes the cake easier to remove.
- I like to wrap my cakes in plastic wrap and then freeze for several hours before frosting them. This makes it easier to frost because there are fewer crumbs due to the cake being frozen.
- If you are planning to feed a lot of people, you probably will want to make an additional non-decorated cake since this easy robot cake ends up actually not using a whole 9 x 13 cake.
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Stacy Wilder
What size cake board did you use?
ThriftyFrugalMom
Good question! It’s been 3 1/2 years since I did this and I think I actually just cut a cardboard box down to fit what I needed. But I did a little figuring and I think a 13×19 cake board would work. I don’t think you’d have a lot of extra space with it, but I think it would work. If you try that size I’d love to know if it worked well!
Debbie
My son turns six in April and he requested a robot cake. He is so excited to have this one ? He saw the picture and said it is exactly what he wants ? Looks pretty easy so I am going to try!
ThriftyFrugalMom
I hope it helps make his birthday memorable and special, Debbie! This cake was one of my favorite cakes ever to make because it was super cute but so incredibly easy. I think you’ll have fun making it!
Sally
I just made this cake for my son’s 4th bday, and it really was easy! I followed all instructions to a T and it came out amazing. I made it the morning of his party and I was quite sure I was going to have to make a last minute run to the store for a generic bday cake when this one didn’t turn out. BUT IT WORKED!!!! I even made the frosting you suggested. Thank you for creating something even someone like me could do.
ThriftyFrugalMom
You are SO welcome, Sally! I’m glad that it could help make your son’s birthday memorable and fun…and am so happy you didn’t need to bother making a last minute run to the store. 🙂
shirley
Hi, I wonder if you could please tell me what size the pieces are that you cut. Thanks
ThriftyFrugalMom
I don’t know for sure, but if you look at the cake picture above instruction #2, it should help. The cake was a 9 in. by 13 in. cake. So piece #4 was probably about 7 in. square. #2 and #3 bout 5 in. square and piece #1 about 2 in. wide. That will leave you with piece #5 the size it should be. Hope that helps!
Nicole
This cake is adorable! Just wondering if you used regular size m&m or the large ones?
ThriftyFrugalMom
Thanks, Nicole! Yes, I used the regular sized M&M’s. Of course you can always use your own creativity and use any candy that you have on hand to do similar decorating too!
Jo
Very cute! looks fairly easy too, though I’ve never really tried decorating cakes.
ThriftyFrugalMom
Thanks, Jo! It really was super easy and fun to decorate too. I only wish that I would have used red M&M’s for the 7 on the body to make it stand out more. But my son loved it and didn’t mind, so I suppose it didn’t really matter. 🙂