How to make a stacked Cat in the Hat birthday cake and accompanying cupcakes

How to make a stacked Cat in the Hat birthday cake and accompanying cupcakes

I blogged yesterday with photos of a cake my friend Erin Lippitz made for her niece's first birthday party this weekend.

Now, as promised, here are her instructions.Blog Photo

To begin, Erin printed out a bunch of images associated with the book, including photos of the Cat in the Hat, Thing 1 and Thing 2 and the fish from in the book.

Erin used her favorite white cake recipe and the recipe for Buffy's Buttercream Frosting.

She baked three 8-inch round cakes for the base, and three six-inch cakes to make the hat. She popped them out of the pans and refrigerated them overnight so they'd be firm enough to handle.

She shaved the top of each layer with a sharp bread knife to make it completely flat and easy to stack. She then cut each of the smaller cakes in half horizontally, for a total of Blog Photosix thin layers. She cut the layer intended for the top at a 45-degree angle.

She stacked each of these layers - both for the hat and the base - with buttercream. For the hat section, she also offset them a bit, to make a curve to mimic the shape of the hat.

She took that top cut piece (the one she cut at an angle) and rotated it 180 degrees before stacking it. That made the top of the hat slope – that's also how you make a topsy-turvy cake, Erin says. (See photo to the left for how it looked after being stacked.)

To the base, Erin added three, 3-inch diameter Blog Photoplastic supports she bought at Michael's. This would ensure the hat section wouldn't crush the base section.

Erin then covered both separate stacks with plastic wrap and put them in the fridge overnight. The next day, she took them out and trimmed them around the sides with her bread knife to make them completely smooth. For the top layer, she followed the curve of the offset stacks to make it look even more like a hat. She put a sucker stick in the middle to keep the layers from shifting.

Blog PhotoShe frosted the base cake completely with white buttercream and while the frosting was still a little wet, she rolled out her red fondant with a silicone roller. She bought red fondant on

To make the stripes for the base, she used a plastic ruler (Erin uses it exclusively for baking) and a pizza cutter to cut the fondant. She used the width of the ruler as her template. She applied each strip to the cake before the fondant dried, and gently pressed it into the cake. She made the strips long enough to almost touch in the middle. The cake hat covered this seam. She used eight strips to achieve the stripey look you see in the photo below.Blog Photo

She finished off the bottom edge with red and white balls of fondant she made days in advance. Those don't even need to be refrigerated, and she attached them with a little bit of frosting.






To decorate the top, hat cake, Erin started by making the ruffled hat brim.

Blog PhotoShe cut a round piece of white fondant, using the cake board (a piece of cardboard the cake sits on) as a template for the large circle.

She used her hands to shape the edge into a slight ruffle and left it to dry for about an hour. Once it dried, she used a black Americolor Gourmet Writer Food Decorating Pen to add accents so it looked hand-drawn, just like in the book.

She used a large spatula to move the cake on top of the hat brim, which was sitting on a cake board for easy assembly later. The hat section stayed there until Erin was ready to assemble it at the birthday party. Otherwise, it would have been too tall to transport safely.

Then, Erin cut the piece of round, red fondant for the top. She used the cake pan as a template and laid it on top, gently pressing it into the frosting.

She cut strips of red and white fondant and wrapped them around the cake horizontally. (Erin said she doesn't get the best results when covering an entire cake in fondant.) There was a seam Erin turned to the back, and she said no one noticed it.

After the striped fondant dried, Erin used her food marker to add hand-drawn accents to the top of the hat, as well. She made sure the cake was on the brim before this step. That's because if you handle the cake after you use the marker, the coloring will smudge. She formed her niece's name out of white fondant to add to the top of the cake.

Blog PhotoAfter finishing the cakes, she made the bow tie out of red fondant (she wanted to make sure she had both time and room to do so). She used two equally round balls of fondant and shaped it with her hands.

She sculpted the fish's bowl about a week prior out of gum paste and fondant, and marked on it with food marker after it dried.

She also sculpted the fish over a lunch hour with white fondant she turned orange with red and yellow food coloring. She used a photo from the book as a reference, using an oblong piece of fondant. She stuck a finger in the fondant to make a mouth, and once it dried, added details with the food marker.

Blog PhotoThe night before the party, Erin stuck a sucker stick in the bottom end of the fish and attached it inside the bowl, which was still somewhat soft. She added blue buttercream to the bowl to look like water right before she was ready to display the fish.

It didn't fit on the cake as Erin originally wanted, so she just displayed it on the table with the cupcakes she made to accompany the cake.

Erin made vanilla cupcakes with red wrappers and frosted them with white buttercream. She added blue cotton candy right before the birthday party attendees were ready to eat them. If it's on longer, the cotton candy will dissolve in the frosting.

She made the Thing 1 and Thing 2 labels on her home computer, using InDesign, and attached them to the wrappers with a piece of tape.

Blog PhotoTo move the cake, Erin put the base in a cake box and transported in the trunk of her car. She held the hat cake on her lap while her husband drove.

For final assembly, Erin picked up the hat cake with a spatula while her husband spotted it. She gently pulled the spatula out and let it land on the bottom, striped layer.

Aren't the results amazing? Let me know if you have any questions, and I will pass them on to Erin.

All photos taken by Erin Lippitz and used with her permission.

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rsp wrote on December 04, 2012 at 12:12 pm

Oh my! That is so cute. I'll bet she enjoyed that. 

Meg Dickinson wrote on December 04, 2012 at 7:12 pm
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I know, isn't it darling? That cotton candy on the cupcakes gets me every time.

manda82 wrote on December 04, 2012 at 12:12 pm

Ok, so I tend to lurk on baking boards to look for fun ideas, but this made me actually register and comment. This is amazing! So cute. I love Dr. Seuss and I have twin boys with a first birthday in April. Totally going to keep this idea in mind.

Meg Dickinson wrote on December 04, 2012 at 7:12 pm
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Welcome - I'm so glad you did! I hope it works for you.

elippitz wrote on December 05, 2012 at 7:12 am


It was fun to make but really time consuming. I'd estimate I put in at least 12 total hours of work on the entire set up. Not all at once of course. I bake the cakes a few days in advance (let them cool completely before removing them from the pans and then wrap them and stick them in the fridge), the next day I stack and carve them (then cover them and pop them back in the fridge), and the following day they are iced and finished. In between that time I'm creating the accessories, baking cupcakes and occasionally having a meltdown in the kitchen. Oh, and going to my day job. My poor husband. At least he gets to eat the leftover frosting.

Good luck with your cake! Your party guests will love it and your boys will have some great pictures of their second birthday to look back on. 

Neha Priyadarshini wrote on October 03, 2014 at 8:10 am

Hi Erin,

Thanks for sharing your knowledge with us. I just loved loved your cake, and the blog is really descriptive. I am a newbie to cake decoarting and was really hoping you could help me on this one. You see, I am hoping to make a Cat in a Hat cake for my son's birthday.

Why didnt you manged to place the fish on top of the hat? Pls dont mind my asking so.... its just that my son loves it a lot when the Cat balnces the fish (he keeps shouting, put me down, put me down, this instance! lol). I was really hoping to place the fish on top. Can you give me some pointers that can help me in doing so?