Picture of a beach themed ice cream cake with seashells on top

Seashell Beach Cake for an Under the Sea Party

When my three year old daughter said she wanted an under the sea themed party, my first question was what kind of cake should I make. My daughter likes cake, but she LOVES ice cream. So even though I wanted to make the same cake I made for her brother’s birthday, I knew she would like an ice cream cake more. Deciding what it would look like was harder. I have a really fun letter and number cake mold, so I wanted something that wouldn’t look weird when shaped like a three. Eventually, I decided a seashell covered beach cake would be the best option.

I am going to break down how I did each part of this cake. So, don’t worry if you are only interested in the seashells on top, or the shape, or whatever. You can skim to where I talk about that part and do the rest your way. You can totally make a round seashell beach cake made from a box cake mix. Or you make a square shaped ice cream cake with black frosting and stars on top.

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Making a Seashell Beach Cake

Supplies:

Creating the Cake:

Before doing anything, you need to make sure your cake and whatever you plan on placing it on fits in your freezer. Once I verified that, I put together my cake pan to be the shape of a three.

Then, I used my great grandma’s recipe for the bottom crust of the cake.  Once it had hardened in the fridge, I filled the rest of the cake pan with two and a half tubs of softened ice cream. My daughter got to choose the flavors. She really wanted Dragon’s Dream ice cream (it was purple), but I convinced her to also get chocolate. I kept each flavor as separate as possible, so each person could choose which one they wanted. Then, I put it in the freezer to harden up.

Once it was hard, it was time for the scary part of getting it out. I went around all the edges with an icing spatula to get it as loose as possible. Then I bravely flipped it over onto a cookie sheet. While it was upside down, I cut off a couple of edges to make it look more like a three. Then, I flipped it again onto its final resting place.

Creating the Decorations:

Now it was time for frosting. Even though it isn’t my favorite, I read that whipped cream frosting freezes the best. I made the frosting from this ice cream cake recipe and dyed it blue. Then, my daughter and I spread it all over the cake. Ever since she saw me buy blue sprinkles from the store, my daughter had been asking about them nonstop. So, I let her do them. Then, it was back in the freezer for it to harden again. I am sorry for the lack of pictures, I thought for sure I took more, but I can’t find them.

Meanwhile, back in the freezer, I had been making the seashells to go on top. First, I melted white chocolate in the microwave and spread it all around my seashell mold. I used these molds for so many different things for my daughter’s party. Once the white chocolate hardened, I filled the shells up with thawed ice cream from the fridge. Then, I stuck the mold in the freezer to refreeze the ice cream. Once they froze, I popped them out of the mold and into a plastic container I kept in the freezer. After a quick rinse to the mold, I started all over again.

Once I finished the cake base and seashells, it was time to put it all together. First, I used a rolling pin to crush a bunch of nilla wafers to look like sand. Then I sprinkled the top of the cake with the crumbs. Lastly, I put the white chocolate seashells on top of the “sand” and sprinkled a few more crumbs on top.

To keep it fresh, I wrapped it up in a bunch of aluminum foil and stored it in the freezer until my daughter’s party. I took it out a few minutes before we wanted to eat it and used a knife to carve holes in it to put in the candles.

Picture of a beach themed ice cream cake with seashells on top

Outcome of Beach Cake:

My daughter was very happy with her cake, which is what mattered. It ended up being a massive amount of ice cream, so it easily fed everyone at her party. I like how it turned out visually, even though I don’t think it was the tastiest cake I have ever eaten. I did love being able to make it a few days ahead of time instead of rushing the last minute to make it fresh. What is your favorite flavor of ice cream?

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