How to make Jellyfish Cookies with Royal Icing

Cute little jellyfish sugar cookies are a great treat for an under the sea themed party.  These adorable little swimmers are as easy as they are festive.  Check out this simple cookie tutorial to lean how to make these cookies.

An under the sea party theme is definitely one of the most popular summertime party ideas. Planning an ocean party is made even better with some custom, cute and super simple jelly fish cookies.  


☑️ This Under the Sea Party Kit is the perfect set to get your party planning headed in the right direction!

The best part of fun jellyfish cookies…they literally can be any color.  So if you have a specific color scheme, you can ice your jellyfish in that color scheme.  Perfection!


How to use Jellyfish Sugar Cookies

These jellyfish cookies can be displayed on a simple white plate.  You can also place blue jelly beans or sixlets on the plate and place the cookies on top to give them a little dimension.  Adorable!  


Ideas for an Under the Sea party

There are many fantastic ideas for an under the sea themed birthday. For more party ideas, check out this under the sea party post.

There are also tons of under the sea party ideas in this cute party.  These little jellyfish cookies also go perfectly with the octopus cookies that you can make using this octopus cookie tutorial!  So many ideas!

Jellyfish Cookie Tutorial: STEP by STEP

Alright..let’s take a look at how to make these adorable jellyfish sugar cookies.



Step 1:

Start with a good sugar cookie recipe and prep the dough.  I always add additional flour to my dough so they do not stick to the cutting surface. They bake better this way also.  

Once your dough is ready to start cutting, roll it out to about ¼ inch thick.  Thicker cookies will bake easier, decorate easier and bonus…they taste delcious.  Don’t be afraid of making thick cookies!!

Preheat oven according to the recipe.  Line cookie sheets with parchment paper. Cut the dough using the leaf cookie cutter.  Bake the cookies according to the desired recipe.

Allow to cool completely before decorating.  I usually like to bake them the day before I decorate.

Step 2:

Next you need to prepare the royal icing.  Choose whatever color you want for the icing.  Just add the gel food coloring to the icing until you have the desired color. 

Remember to separate your icing into separate containers to mix with coloring and set aside sealed until you are ready to use them.  You don’t want the icing to dry out while you are using other colors.

Add small amounts of water to each container and mix until you get the frosting to the desired consistency. You will want the icing to be fill consistency (honey-like) icing. Be careful not to add water too quickly.

Fill piping bags with royal icing.

Step 3:

Turning the leaves upside down, you will outline the main body of the jellyfish with icing.  Then fill in the body shape.  Use a toothpick or fork prong to flatten out any imperfections in the icing so that it is smooth. 

Gently place two large candy eyes into the body section while the icing is drying.  

Next, draw squiggly lines down from the main body to give the jellyfish his tentacles.  

Step 4:

Once the icing is fully hardened, you can use the edible marker to draw the mouth onto the heads underneath the eyes.  Easy peasy and ready to enjoy!

Looking for more ideas for an Ocean Themed Party?

If you are looking for more ideas for an ocean themed party…check out these other under the sea party ideas.

Coordinating Under the Sea Party Supplies

If you are throwing an under the sea party, a super simple way to really get ahead of the game is to grab some adorable under the sea decorations and tableware.  I am in LOVE with this design from Meri Meri.  The metallic sharks are so cute and those cute fish napkins!!! 

This set from Oriental Trading is also super adorable for an under the sea themed party.  The fish shaped plates are soooo adorable!


Under the Sea Printables

You can grab these fun and easy to use printables from my shop:




Here are some helpful links for planning an under the sea party:


Conclusion for DIY Jellyfish Cookies:

Alright…these Jellyfish cookies are simple to make and delicious. I know if you want to make some fantastic cookies for your under the sea party, these are just the ticket.  This tutorial is super super simple!

If you love this tutorial, please pin this image to your birthday Pinterest board:

Related posts for making Jellyfish shaped Cookies:

Thank you for reading my Royal iced Jellyfish Cookies!