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Rice Krispies Treats Day

Celebrate Rice Krispies Treats Day with delicious, gooey treats! Get creative and top them with your favorite toppings for an extra special treat.

Friday

September 2026

Last updated February 7, 2026 · by the Holiday Calendar Team

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YEARLY DATESeptember 18

OBSERVED INUnited States

CATEGORYFood

SUBCATEGORYDesserts

INTRO

Introduction

PHOTO

Get ready to celebrate Rice Krispies Treats Day on September 18 with a big bowl of your favorite crunchy snack! This day was created as a way to honor the invention of this classic treat, which has been around since 1939. It's hard not to love the combination of crispy rice cereal and melted marshmallow that makes this sugary confection so delicious. So break out your pan, grab some ingredients and let's get cooking!

DEALS & OFFERS

Past offers

No active deals yet — here’s who’s celebrated before.

Nothing yet for 2026

Brands typically announce offers a week before the date. Check back closer to the day.

1 brand has run a deal

Kent's Market

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TIMELINE

Rice Krispies Treats Day Timeline

Rice Krispies Cereal Introduction

The Kellogg Company introduced Rice Krispies, the main ingredient in Rice Krispies Treats, to the market.

Treats Invented by Kellogg Employees

Mildred Day and Malitta Jensen, employees at the Kellogg Company, invented the Rice Krispies Treat recipe for a Camp Fire Girls event.

Recipe Included on Cereal Boxes

Kellogg began to print the recipe for Rice Krispies Treats on their cereal boxes, helping it gain nationwide recognition.

Pre-made Treats Launched

The Kellogg Company began selling pre-made Rice Krispies Treats nationwide.

Record-breaking Krispies Treat

Kellogg's sets a Guinness World Record for largest Rice Krispies Treat weighing in at 2,480 pounds.

Rice Krispies Treats Day Celebration

The unofficial holiday, Rice Krispies Treats Day, was created to celebrate the enjoyment of this sweet crunchy snack.

GET INVOLVED

How to Celebrate Rice Krispies Treats Day

Make your own Rice Krispies treats

Making your own Rice Krispies treats is easy, and it's a great way to celebrate the day. Just melt some butter, marshmallows, and a little bit of sugar and you have the start of a wonderful treat.

DECORATE

Decorate Rice Krispies treats

Take your basic Rice Krispies treat and add some icing or sprinkles to make them extra special. You can also use cookie cutters to cut them into fun shapes and sizes.

BUY

Buy special Rice Krispies treats

Check out bakeries, specialty stores, or even make an online order to get some special Rice Krispies treats. You could get ones with different flavors or colors added in.

CREATE

Create a Rice Krispies treat bar

Set up a bar with different ingredients such as chocolate chips, chopped nuts, raisins, dried fruit, candy pieces - the possibilities are endless! Let everyone make their own creation.

HOST

Host a Rice Krispies treat bake off

Gather your friends or family together for a bake off! Have everyone bring their own creations and let the fun begin. Have everyone vote on their favorite recipe and award the winner with a prize.

WHY THIS DAY MATTERS

Why We Love Rice Krispies Treats Day

It's fun for all ages

Because of their ease of preparation and endless possibilities when it comes to customizing flavor and toppings, Rice Krispies Treats are a great snack option that everyone will enjoy! Whether it's for a kids' birthday party or just as an after school treat, your family will love these classic treats!

It's quick and easy to make

When it comes to Rice Krispies Treats, preparation is a breeze. All you need are just three simple ingredients: marshmallows, butter, and Rice Krispies cereal. Plus, the process of making them couldn't be simpler - just melt the marshmallow and butter together in the microwave, stir in the cereal, and press into a pan!

They're delicious

Who can resist the combination of crunchy Rice Krispies cereal and gooey marshmallows? The combination is like no other – sweet, salty, and oh so satisfying! Plus, they can easily be customized with whatever toppings or flavors you desire for an extra dose of yumminess!