Mermaid Clam Cookies for a Mermaid Birthday Party

I've been at this blogging thing for a really long time. So long, that sometimes even I forget about projects that I've done! About six years ago, I helped with the decorations for my niece's 5th birthday party. It was quite the event! I expected no less though since my sister-in-law is a corporate event planner. She knows how to throw a party! 

blue and white under the sea cake

I spent so much time that summer looking for every decor item I could find that would fit the mermaid theme. It's been years and I still see things that would have made a great addition to that party. In fact these mermaid clam cookies are one of them. I think my niece was ahead of her time because now mermaid parties are hitting their peak. So, since it's been awhile I thought I'd share some of the details from the mermaid party I helped with and share these adorable mermaid clam sugar cookies in case you have a mermaid lover that's getting ready to celebrate!

clam with a pearl edible cookies

Mermaid Clam Sugar Cookies

clam with a pearl edible cookies

You'll need to get a clam shell cookie cutter like this one
how to decorate a clam sugar cookie

Yield: 36
recipe for clam sugar cookies

Mermaid Clam Sugar Cookies

Easy to make mermaid clam sugar cookies perfect for an undersea party!


Cookie Ingredients:
3 C flour
1 tsp baking soda
1/2 tsp salt
1 C soft unsalted butter
1 C granulated sugar
1 eggs

Icing Ingredients:
2 egg whites
1 C powder sugar
1/2 tsp cream of tartar
1 tsp vanilla
1 piping bag with a number 2 tip
1 bowl to thin the icing

Buttercream frosting

1 C of softened sweet cream butter
2 C powder sugar
1 tsp vanilla extract
1 tsp heavy whipping cream
2 drops of pink food dye
1 piping bag with a large star tip
1 bag of colored pearl candy


Cookie Directions:
Cream the softened butter with the sugar until the combination is smooth {not grainy to the touch} in a mixing bowl. Add eggs and continue to mix while adding the vanilla.

Sift the four, baking soda, and salt together and add the dry mixture to the wet mixture.

Continue mixing to make sure all ingredients are thoroughly blended.

Make the dough into a ball, wrap it in cling wrap completely covering the entire dough ball and put it in the refrigerator for about 6 hours or overnight. Check to see if the dough is firm and then you will know it's ready.

Preheat the oven to 325 degrees.
Pull the cookie dough out of the refrigerator and let it sit out to soften up a bit.

If you find that the dough is sticky, put flour out on the cutting board, rub flour on the rolling pin, and work some flour into the batter.

Roll the dough out on the cutting board and using the cookie cutter begin to make your cookies.
Move the cut cookies with a metal spatula onto your parchment lined cookie sheet. 

Bake at 325 degrees for 8 minutes. Check to see if the cookies are thoroughly baked. 

Take the cookies off of the cookie sheet and put on a wire rack to cool completely.
{About 10 minutes}

Icing Directions:

Combine all the icing ingredients into a stand up mixing bowl. If the icing looks a little soupy add in 1/2 C powder sugar and mix on medium speed until stiff peaks form {about 5 minutes}

Scoop some icing into your piping bag and the rest into a bowl

Add 1 tbsp of water and mix to thin the icing that you have in your bowl. Add into a squeeze bottle

Take about half of your cookies to decorate and leave the other half for the bottom of the shell.

Outline your cookie using the white icing in the piping bag. Using the thinner icing, fill in the cookie.Set aside to dry for 1 hour.

Directions for the inside of the clam:

Using a standing mixer, mix all ingredients for the buttercream, except the color, until combined and stiff peaks form.

Add the food dye and mix well until combined and the desired color. Scoop frosting into the piping bag and pipe the frosting onto the naked clam shell cookie.
Grab the decorated shell and place onto the top of the frosting leaning so that you can see the frosting

Finish them off by adding a colored pearl candy.

Created using The Recipes Generator

mermaid themed birthday party

There is nothing better to go with your mermaid clam cookies than a pineapple palm tree fruit platter.

My engineer husband made a strong base with a pole through the center to hold pineapples that had been cored.

This pineapple corer will give you the desired effect.

Palm fronds were poked into the top to make it look just like a palm tree.

cored pineapples create a palm tree centerpiece

No mermaid party is complete without activities. A custom logo with the birthday girl looking like a mermaid was made for the invitations and we used that image throughout the party from stickers to tattoos to fish bowls full of food.

And because kids parties should always have alcohol {always}, there was a custom make your own mermaid margarita station.

With over 100 guests, the mermaid cake had many people to feed. The mermaid made a great cake topper. 

She was cut out and designed with my Silhouette and a thin layer of glitter was added to the clam shell. 

One of the final decorations I made was this mod podge sand castle. I covered several boxes with mod podge and sprinkled sand on top. I used shells to decorate the rest of the castle. You can read more about it on the mod podge sandcastle post. 

There are so many fun details you can have for your mermaid party. I hope this was a good jumping off point to give you some inspiration. Check out the original mermaid pool party post and this details post for more inspiration. 

disclaimer: this post may have affiliate links. By clicking on them and purchasing through them, I may receive a small commission. These small purchases help me to continue to keep writing content and creating at Rachel Teodoro. Thank you!

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