Take a trip back to Saturday morning cartoons with these Frosted Trix Cereal Cookies! These aren’t just your average sugar cookies; they are packed with the iconic fruity, citrusy crunch of Trix cereal both inside the dough and rolled on the outside for maximum flavor. Each bite offers a perfect balance of a soft, chewy cookie base and a vibrant, tangy cereal kick that will have kids and adults alike reaching for seconds.
The star of the show is the cereal-infused buttercream frosting, which adds a creamy, dreamy layer of sweetness topped with even more whole Trix pieces for a fun, colorful finish. Whether you’re baking for a themed party or just looking to add some brightness to your week, these cookies are a whimsical and delicious way to enjoy a classic childhood favorite in a whole new form.
Why You’ll Love This
• Ultimate Nostalgia: Captures the exact “silly rabbit” flavor you remember from childhood.
• Textural Paradise: Features a soft cookie center with a satisfyingly crunchy cereal coating.
• Eye-Catching Aesthetic: The vibrant colors of the Trix and the pink-tinted buttercream make these a stunning addition to any dessert table.
• Customizable Sweetness: The citrus notes from the cereal perfectly cut through the rich buttercream.

Ingredients
For the Cookies:
- 1 cup (227g) unsalted butter, softened
- 1 cup (200g) granulated sugar
- 1/2 cup (110g) light brown sugar, packed
- 2 tsp vanilla extract
- 2 eggs, room temperature
- 2 2/3 cup (320g) All-Purpose flour
- 3/4 cup (approx. 40g) finely crushed Trix cereal (for the dough)
- 1 tsp salt
- 1 tsp baking soda
- 1 tsp baking powder
- 1 cup (approx. 55g) crushed Trix cereal (for rolling)
- 2/3 cup whole Trix cereal (for topping)
For the Cereal Buttercream:
- 3/4 cup (170g) unsalted butter, softened
- 2 cups (240g) powdered sugar
- 1/3 cup (approx. 20g) finely crushed Trix cereal
- 1-2 tbsp heavy cream
- 1 tsp vanilla extract
Instructions
1. Prep the Cereal: Pulse your Trix cereal in a food processor until you have two sets: one finely ground for the dough and buttercream, and one slightly coarser for rolling.
2. Cream Butter and Sugars: In a large bowl, cream together the softened butter, granulated sugar, and light brown sugar until light and fluffy.
3. Add Wet Ingredients: Mix in the eggs and vanilla extract until well combined.
4. Combine Dry Ingredients: Gradually fold in the flour, 3/4 cup finely crushed cereal, salt, baking soda, and baking powder until a soft dough forms.
5. Roll and Coat: Scoop approximately 3.75oz of dough and roll into balls. Roll each ball into the coarser crushed cereal until fully coated. Flatten slightly into discs.
6. Bake: Place 13 discs on a baking sheet and bake at 350°F (177°C) for 10-12 minutes until the edges are just set.
7. Make the Frosting: Beat the butter until smooth, then gradually add powdered sugar, 1/3 cup finely crushed cereal, vanilla, and heavy cream until you reach a pipeable consistency.
8. Decorate: Once cookies are completely cool, pipe a swirl of buttercream on top and garnish with whole cereal pieces.
Tips for Success
• Room Temperature Ingredients: Ensure your eggs and butter are truly at room temperature for a smooth, cohesive dough.
• Don’t Overbake: These cookies should remain soft; they will continue to firm up on the hot baking sheet once removed from the oven.
• Fine Dusting: Sift the cereal dust used in the buttercream to ensure the frosting remains silky and doesn’t clog your piping tip.
Storage and Freshness
• Room Temperature: Store unfrosted cookies in an airtight container for up to 5 days.
• Refrigeration: Because of the buttercream, frosted cookies should be stored in the fridge for up to 3 days. Bring them to room temperature before serving for the best texture.
• Freezing: You can freeze the unbaked dough balls for up to 3 months. Bake directly from frozen, adding 1-2 minutes to the bake time.
Pipping bags, cookie boxes, flavor extracts, food colorings and tons of other items I use to bake with are linked for you in my Amazon Storefront!

Frosted Trix Cereal Cookies
Ingredients
Method
- Prep the Cereal: Pulse your Trix cereal in a food processor until you have two sets: one finely ground for the dough and buttercream, and one slightly coarser for rolling.
- Cream Butter and Sugars: In a large bowl, cream together the softened butter, granulated sugar, and light brown sugar until light and fluffy.
- Add Wet Ingredients: Mix in the eggs and vanilla extract until well combined.
- Combine Dry Ingredients: Gradually fold in the flour, 3/4 cup finely crushed cereal, salt, baking soda, and baking powder until a soft dough forms.
- Roll and Coat: Scoop approximately 3.75oz of dough and roll into balls. Roll each ball into the coarser crushed cereal until fully coated. Flatten slightly into discs.
- Bake: Place 13 (spproximately 3.75oz) discs on a baking sheet and bake at 350°F (177°C) for 10-12 minutes until the edges are just set.
- Make the Frosting: Beat the butter until smooth, then gradually add powdered sugar, 1/3 cup finely crushed cereal, vanilla, and heavy cream until you reach a pipeable consistency.
- Decorate: Once cookies are completely cool, pipe a swirl of buttercream on top and garnish with whole cereal pieces.
Video
@bubbas_daughter The best Trix cookies ever! 🫶🏽🥣 (full recipe in video!) #trixcereal #trixcookies #cerealcookies #cerealtreats #nostalgiacore #crumblcookies #customcookies #bestcookies #cookieideas #uniquecookierecipes #cookieflavorideas
♬ Disfruto (Remix) – 林怿