
This Funfetti Cake Batter Popcorn is the ultimate cheerful snack when you want something sweet crunchy festive and totally irresistible. The gooey marshmallow coating clings to each kernel while the funfetti cake mix and colorful sprinkles make every bite taste like a party. Perfect for movie nights birthday gatherings or just whenever you want to treat yourself this was the snack my niece begged me to make for every big sleepover.
The first time I made this my whole house smelled like birthday cake and I knew it would become a regular request. Kids and grownups always want seconds so do not expect leftovers.
Ingredients
- Butter: adds rich flavor and helps create a gooey coating for the popcorn use fresh high quality butter if possible
- Miniature marshmallows: give the mixture its signature stickiness and help everything cluster together choose soft fresh marshmallows for best melting results
- Vanilla extract: deepens the cake batter flavor real vanilla is preferred for best taste
- Funfetti cake mix: delivers that classic birthday cake flavor look for a heat-treatable mix for safety
- Flaky sea salt: balances the sweetness and enhances all the flavors use high quality salt for the best finish
- Rice Krispies cereal: adds a bit of crunch and an extra layer of texture get a fresh crispy box
- Popped buttered popcorn: the base of the recipe opt for a good microwave or stovetop popcorn with just butter and salt for cleanest taste
- Sprinkles: make it pop visually and add a touch of sweetness choose vibrant sprinkles that will not bleed once mixed
- Funfetti: because extra color is always more fun
- Look for sprinkles that hold up under gentle mixing and avoid faded colored brands
Step-by-Step Instructions
- Melt the Butter and Marshmallows:
- Melt butter in a large saucepan over medium low heat until fully melted and starting to foam. Add the miniature marshmallows and stir constantly letting them melt until the mixture is smooth and glossy with no lumps left. This takes patience for the best gooey base.
- Add the Vanilla:
- Remove the saucepan from the heat and stir in the vanilla extract. Mix thoroughly so the vanilla is evenly dispersed for even flavor.
- Blend in Cake Mix:
- Add the funfetti cake mix to the melted mixture while off the heat stirring well so the mix dissolves fully with no clumps remaining. This step transforms the base into a true cake batter treat.
- Fold in the Crunch:
- Gently fold in the Rice Krispies cereal. Once it is combined add the popped buttered popcorn working carefully to coat every bit. Use a gentle folding motion so the popcorn stays puffy and whole.
- Sprinkle in Color:
- As you mix in the popcorn scatter over sprinkles to your liking. This way some sprinkles stay whole and bright while others nestle into the marshmallow for texture and color.
- Set and Cool:
- Spread the coated popcorn mixture onto parchment paper in an even layer. While still a little warm sprinkle with flaky sea salt to balance flavors. Let it stand until fully cooled and the coating is firm to the touch before breaking into serving pieces.

My favorite part is watching the marshmallow and butter turn glossy and rich before adding all the bits. It always reminds me of helping my mom make holiday treats in our tiny kitchen surrounded by laughter and sticky fingers. No matter what colors we used the sprinkles always brought a smile.
Storage Tips
Keep your Funfetti Cake Batter Popcorn in an airtight container at room temperature for up to five days. If you want to make it in advance or have leftovers you can freeze it in a sealed bag or container for up to two months. Make sure it is completely cooled before storing to avoid condensation which can make the popcorn soggy.
Ingredient Substitutions
If you do not have Rice Krispies cereal use any crisp rice cereal. For a dairy free version try plant-based butter and vegan marshmallows available at many grocery stores. Gluten free cake mixes work well for guests with dietary needs. You can also swap out regular sprinkles for naturally colored or allergy friendly options.
Serving Suggestions
Serve the popcorn in individual cups or small bags for parties to make it easy for guests to enjoy. It also looks fantastic piled high in a big colorful bowl. Add it to a dessert table along with other treats or pair with fruit skewers for a balanced spread. It is also great as a homemade party favor.
Cultural and Fun History
Funfetti as a concept first gained popularity with boxed cake mixes that took off in the 1990s making every bake feel like a celebration. Cake batter popcorn brings that same festive tradition to snacking crossing generations from childhood parties to grown up gatherings. The burst of colors signals fun and enjoyment in every handful.
Common Recipe Questions
- → What makes funfetti cake batter popcorn unique?
The combination of buttery popcorn, marshmallow, cake batter, Rice Krispies, and sprinkles gives it both a playful flavor and colorful appearance.
- → How do I make sure the popcorn stays crunchy?
Use freshly popped popcorn and let the finished mixture cool completely on parchment before breaking into pieces.
- → Can I change the type of sprinkles or add mix-ins?
Absolutely! Try different colors or add treats like mini chocolate chips or candies for extra flavor and fun.
- → How long does it keep and how should I store it?
Store in an airtight container at room temperature for up to five days, or freeze for up to two months. Keep it cool and dry.
- → What’s the best way to serve this treat?
It’s great served in bowls for gatherings, packed into jars for picnics, or portioned out for party favors or dessert tables.
- → Are there any safety tips with the cake mix?
Heat-treat the cake mix in the oven before using to ensure safety when mixing into the popcorn base.