Shark Attack Poke Cake Cupcakes That Kids Will Go Crazy For!

I can’t even tell you how much fun these Shark Attack Cupcakes were to make! My kids were absolutely obsessed, from the surprise red Jello filling to the gummy sharks on top, it was all giggles and excitement from start to finish. They’re the kind of cupcakes that totally steal the show at summer parties, poolside birthdays, or honestly, even just a random Wednesday afternoon when you want to do something silly and sweet.

I used a simple box of white cake mix to keep things easy (because who has time for scratch-made everything, right?), then poked holes and filled them with bright red Jello for that “shark attack” vibe. Once they chilled and set, I mixed up the frosting with a few drops of blue food coloring to make it look like ocean waves. The gummy sharks and Swedish fish on top? Total kid magnet. 

If your kids are anything like mine, they’ll be begging for these again and again. They’re messy, silly, and just a blast to put together. Plus, they’re a fun excuse to get a little creative in the kitchen without a ton of effort. Whether it’s Shark Week, a beach-themed party, or just a fun weekend activity, these cupcakes are always a hit!

Ingredients

• 1 15.25 ounce box white cake mix, plus ingredients to prepare it – This is your cupcake base, and yes, boxed mix totally works like magic here.

• 1 3-ounce package red Jello – For that dramatic “shark attack” effect, this is the secret surprise inside!

• 1 ½ cups boiling water – Just what you need to dissolve the Jello and bring the drama.

• 1 16-ounce container white icing – Grab your favorite store-bought frosting to keep things super easy.

• Blue food coloring – A few drops turn your icing into ocean waves, so fun and summery!

• 22 gummy sharks – These guys are the stars of the show, perched right on top like they own the place.

• 22 mini Swedish fish – A little extra underwater action to make each cupcake even more adorable.

Step-by-Step Instructions

You can find a printable recipe card at the bottom of this post.

1. Prepare the white cake mix and bake 22 cupcakes. Allow the cupcakes to cool completely, then use a wooden skewer to poke holes all over each cupcake.

2. Whisk together the red Jello and boiling water until all the gelatin is dissolved. Spoon the prepared Jello into the holes in the cupcakes, then place the cupcakes in the refrigerator to chill for at least one hour.

3. When ready to serve, beat together the white icing with three to four drops of blue food coloring. Continue mixing until the icing is your desired shade of blue.

4. Spread the icing over the top of each cupcake, then decorate with one gummy shark and one Swedish fish.

Tips for the Perfect Shark Attack Poke Cake Cupcakes

• Don’t overbake your cupcakes, keep an eye on them so they stay nice and soft (nobody wants dry cake at a shark party).

• Use a wooden skewer or even a chopstick to poke those holes deep so the Jello really sinks in.

• Let the cupcakes chill for at least an hour after adding the Jello, it helps that “bloody” center set perfectly.

• Add the blue food coloring a drop at a time, it’s easier to go darker than to fix a too-blue frosting situation!

• Pop your gummy sharks and fish on just before serving so they stay fresh and don’t slide around.

• If you’re making these ahead, store them in the fridge, but frost and decorate them closer to party time for best results.

Get Creative!

• Use different Jello flavors for the filling, cherry, raspberry, or even blue raspberry for a fun twist.

• Swap the Swedish fish for other ocean-themed gummies or candy pearls to build a whole underwater scene.

• Add crushed graham crackers around the edges of the frosting to look like sand, beachy and cute!

• Mix in some edible glitter or shimmer spray to make those “waves” sparkle.

• Turn this into a fun activity: set out the gummies and let the kids decorate their own shark cupcakes.

• Want a little extra drama? Drizzle some red gel icing on top for a true “shark attack” look!

Serving & Storing

• These cupcakes are best served chilled, especially with that cool Jello center.

• If you’re making them for a party, you can prep everything the day before and just frost and decorate right before serving.

• Store leftovers (if there are any!) in an airtight container in the fridge for up to 3 days.

• Planning a beach or pool party? Keep them in a cooler until it’s cupcake time so the frosting doesn’t melt.

• You can even freeze the unfrosted cupcakes after the Jello step, just thaw and decorate when you’re ready!