Under The Sea Rice Krispie Treats
These Under the Sea Rice Krispie Treats are one of those fun little desserts that look way fancier than they actually are. With bright blue candy coating, pink candy shells, graham cracker “sand,” and pearl sprinkles, they’re perfect for birthday parties, summer treats, or any mermaid-themed celebration. I love making treats like this because they come together quickly without turning my whole kitchen upside down.

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I first made these for a beach-themed party, and the kids absolutely lost their minds over them. The best part is that you can keep things simple by using store-bought Rice Krispie treats, which saves so much time when you’re already busy planning everything else. I’m always here for a shortcut that still looks cute on the dessert table.
If you love fun no-bake treats, you might also enjoy Reese’s Pieces Bark, Banana Pudding Fluff, or Hot Chocolate Brownies for another easy party dessert idea.

Why You’ll Love This Recipe
- Super Easy: Using pre-made Rice Krispie treats keeps prep quick and stress-free.
- Perfect for Parties: These colorful treats make such a cute addition to birthdays, baby showers, or summer gatherings.
- Kid-Friendly: Little ones love helping with the sprinkles and decorations.
- No Baking Required: Great for warm days when you don’t want to turn on the oven.
Ingredients
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For this recipe, I made two of the shell molds. However, if you don’t want to make your own decorations, you can purchase sea themed sprinkles instead.

Under The Sea Rice Krispie Treats
Equipment
- Baking Sheet
- parchment paper or wax paper
- Microwave-safe bowls
- spoon
- Toothpick
- Gallon storage bag
- Rolling pin or heavy cup for crushing graham crackers
Ingredients
- 8 regular sized rice Krispie treats
- 12 ounces light blue candy melts
- 12 ounces bright pink candy melts
- 4 graham cracker sheets
- White pearl sprinkles
Instructions
- Line a baking sheet with parchment or wax paper.
- Melt the pink candy melts by microwaving for 30 second increments, stirring well in between.

- Use a spoon to drop the candy into the shell mold, and use a toothpick to ensure that the shells are evenly filled with the candy.

- Allow those to set, about 20 minutes, then remove from the mold. We made two molds full.

- Discard the rest of the pink candy.
- Add the graham cracker sheets to a gallon storage bag and crush to crumbs.

- Melt the blue candy melts by microwaving for 30 second increments, stirring well in between, until melted.
- Add the paper straws to one end of the rice Krispie treats.

- Dip the treats into the melted blue candy.

- Quickly sprinkle the bottoms with graham cracker crumbs, add one of the shells we made using the mold, and add a couple of pearl sprinkles.
- Place the treats onto the prepared baking sheet and allow them to set for about an hour.

Notes
- Insert the paper straw before dipping for easier handling.
- Let excess candy coating drip off before decorating.
- Decorate immediately after dipping so toppings stick well.
- Use parchment paper to prevent sticking while setting.
Storage:
StorageStore the treats in an airtight container at room temperature for up to 3 days. Reheating
These treats do not need reheating. Serve at room temperature. Freezing
You can freeze the treats in an airtight container for up to 1 month. Allow them to thaw at room temperature before serving.
Disclaimer:
Any nutritional data I provide is an approximation and actual dietary information can vary based on ingredients and proportion sizes.
Nutrition
Wendy’s Tips
- Make sure the candy melts are fully smooth before dipping the treats for the best coating.
- Work quickly once you dip the treats so the graham cracker crumbs and decorations stick before the candy hardens.
- If the candy melts seem too thick, stir in a tiny bit of coconut oil or shortening to thin them out.
- Tap the shell mold gently on the counter after filling to remove air bubbles.
- You can swap the blue candy melts for teal or purple for a different mermaid vibe.
- Try adding edible glitter for extra sparkle on the finished treats.

FAQ
Do you have questions about this recipe? Here are the answers to the most commonly asked questions.
The coating should feel firm and no longer sticky to the touch. This usually takes about an hour at room temperature.
Absolutely. Just make sure they are cut into regular-sized rectangles and fully cooled before dipping.
You can skip the shells or use other candy decorations like starfish sprinkles or gummy candies.
Yes, these are great for making the day before a party since the coating stays firm once set.

