· By Mitzi Torgersen
Happy Flavor Frosted Marshmallow Treats (Way Better Than the Classic Rice Krispie Treats)
If you grew up making cornflake wreath cookies, you probably remember the magic: buttery marshmallow mixture, crunchy cereal, and that irresistible chewy bite.
That’s why I love this upgraded version made with Happy Flavor Happy Icing. It gives the marshmallow base a richer vanilla flavor so the cookies taste like they came from a bakery instead of a holiday craft table.
The result?
Crunchy, gooey, buttery cookies with big flavor in every bite.
Perfect for parties, bake sales, or honestly just a Tuesday night when you want something ridiculously good.
Frosted Flake Marshmallow Krispie Treat Recipe
Ingredients
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16 oz mini marshmallows
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4 tablespoons butter
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1 teaspoon Happy Flavor Happy Icing
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7 cups Frosted Flakes cereal
How to Make Frosted Flake Marshmallow Cookies
1. Melt the marshmallow mixture
In a large pot, melt the butter over medium-low heat.
Add the mini marshmallows and stir continuously until completely melted and smooth.
2. Add the flavor
Remove the pot from heat and stir in:
1 teaspoon Happy Icing
This step makes a big difference because it gives the cookies a stronger, richer vanilla flavor that doesn’t disappear.
3. Fold in the cereal
Add 7 cups Frosted Flakes.
Gently fold the cereal into the marshmallow mixture until evenly coated.
Try not to crush the flakes so the cookies stay crunchy.
4. Spread into 9x13, cookie sheet or shape the treats
Lightly butter your hands or a spoon and spread into a cookie sheet.
5. Let them set
Allow the cookies to cool before serving.
Note: 2.5x for a huge share size that fits perfectly in a cookie sheet for your next get together.
Why These Taste Better Than Classic Rice Krispies
Traditional recipes rely mostly on marshmallow sweetness.
Adding Happy Icing boosts the flavor by replacing the normal vanilla usually used in no-bake desserts.
That extra layer of flavor is what makes people take a bite and say:
“Wait… what’s in these?”
And that’s exactly the kind of moment every home baker loves.
Tips for Perfect Marshmallow Cornflake Cookies
Use low heat
High heat can make the marshmallow mixture stiff.
Work quickly
The mixture sets fast once the cereal is added.
Butter your hands
It keeps the mixture from sticking while shaping.
Add flavor first
Mix the flavoring into the marshmallow before adding cereal.
The Secret to Better No-Bake Desserts
Most no-bake desserts rely heavily on sugar and marshmallows, which means they often taste sweet but not very flavorful.
One simple trick can change that.
Instead of regular vanilla, this recipe uses Happy Icing from The Happy Flavor.
Happy Icing was designed specifically for desserts that don’t go in the oven, like frosting, glazes, whipped cream, and no-bake treats.
It replaces vanilla and adds a richer, more noticeable flavor that makes people stop mid-bite and ask:
“What did you put in these?”
It’s a tiny change that makes a big difference.
If you love desserts that taste as good as they look, you’ll want to keep a bottle of Happy Icing in your kitchen.
👉 Shop Happy Icing here.
How to Store Cornflake Marshmallow Krispie Cookies
Store in an airtight container at room temperature for up to 3 days.
Layer parchment paper between cookies to prevent sticking.
The Secret to Better No-Bake Desserts
Most no-bake treats taste overly sweet because they rely on marshmallows and sugar.
Adding a stronger vanilla flavor balances that sweetness and makes desserts taste richer.
That’s exactly why I started using Happy Icing in recipes like this.
It replaces regular vanilla in any dessert that doesn’t go in the oven and gives the flavor a noticeable boost.
FAQ
Can I use Cornflakes instead of Frosted Flakes?
Yes. Cornflakes work too, but Frosted Flakes add a little extra sweetness and crunch.
How long do marshmallow cornflake cookies last?
They stay fresh for about 3 days in an airtight container.
Can I freeze cornflake cookies?
Yes, freeze them for up to 2 months.
Why do my marshmallow cookies get hard?
Overheating marshmallows can make the mixture stiff. Melt them slowly on low heat.