Funfetti Cake Batter Popcorn Recipe — Sweet Party Snack

This Cake Batter Popcorn is a playful sweet-and-salty snack that both kids and adults will love. Buttery popcorn is coated in a gooey marshmallow mixture blended with real funfetti cake mix for bright flavor and color.

Serve it for movie night, package it as a homemade gift for Valentine’s Day, or add patriotic sprinkles for a festive Fourth of July snack. You can swap sprinkles to match any celebration.

Cake Batter Popcorn

I first made this recipe over Fourth of July weekend and it was an instant hit. The popcorn takes on a rich birthday-cake flavor and the gooey marshmallow coating makes it addictive. Sprinkles add a little crunch while the buttered popcorn balances the sweetness, creating an irresistible sweet-and-salty combination.

For the best texture and flavor, try using popcorn from a local movie theater rather than microwave popcorn — the extra buttery kernels make a big difference.

Key Ingredients

Popcorn – Buttered popcorn provides savory contrast to the sweet coating. Movie theater popcorn is ideal, but use your favorite popped popcorn.

Marshmallows – Mini marshmallows melt evenly and create a smooth, sticky base.

Butter – This recipe uses 1/2 cup (one stick) of butter for richness and to help melt the marshmallows.

Funfetti Cake Mix – Actual boxed funfetti cake mix gives authentic birthday-cake flavor. We heat-treat the dry mix before adding to ensure food safety.

Rice Krispies Cereal – Adds light crunch; choose colored cereal for extra festive flair.

Sprinkles – Jimmies or small confetti sprinkles work best — use the colors you prefer.

How to Make Cake Batter Popcorn

The recipe comes together quickly in three simple steps:

1. Melt butter in a large saucepan over medium-low heat. Add the mini marshmallows and stir continually until fully melted and smooth. Stir in vanilla.
2. Mix in the heat-treated funfetti cake mix until there are no lumps, then fold in the Rice Krispies. Gently fold in the popped popcorn until it’s evenly coated.
3. Stir in sprinkles while the mixture is still warm so they distribute evenly. Spread the popcorn in a single layer on parchment paper to cool and set. Finish with a light sprinkle of flaky sea salt to taste.

Perfect for Sweet Gifting

This cake batter popcorn makes an easy, thoughtful homemade gift. Fill treat bags with a few handfuls, tie with a ribbon, and add a sticker or small tag for a personal touch. It’s a great option for holidays, teacher gifts, party favors, or just because.

More Easy Desserts

If you like this treat, try other simple desserts like S’mores Stuffed Chocolate Chip Cookies, Cookie Puff Pastry, Peanut Butter Cheesecake Dip, or Toffee Caramel Apple Dip. These are quick crowd-pleasers that pair well with family gatherings and parties.