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Copycat Crumbl Cereal Milk Cookie Recipe with Fruity Pebbles and Box Cake Mix!

Copycat Crumbl Cereal Milk Cookie Recipe with Fruity Pebbles and Box Cake Mix!

By Mona - Far From The Farm
June 3, 2026
Thick Crumbl-inspired Fruity Pebbles cookies made with yellow cake mix, cereal, and a simple sugary coating!
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Makes: 14 ( 12 - 14 large cookies )
Approximate cost $4.50
Prep Time 15 minutes
Cook Time 11 minutes
Chilling Time 1 hour
Total Time 1 hour 26 minutes
Servings: 14 ( 12 - 14 large cookies )
Course: Cookies, Dessert, Snack
Cuisine: American
Calories: 248

Ingredients
  

  • 15.25 oz Duncan Hines Yellow Cake Mix
  • 3/4 cup all-purpose flour
  • 1/2 cup vegetable oil
  • 2 large eggs
  • 2 tsp vanilla extract
  • 1 1/2 cups Fruity Pebbles cereal, divided
  • 1/4 cup white sugar

Equipment

  • mixing bowls
  • Measuring jug, cups and spoons
  • Whisk
  • Silicone spatula or spoon
  • Plastic Wrap
  • Cookie sheet
  • Parchment paper
  • Large cookie scoop 2.5 to 3 tbsp size
  • cooling rack
  • Large mug

Method
 

  1. In a large mixing bowl, whisk together the yellow cake mix and flour. Stir in 1 cup of the Fruity Pebbles cereal.
  2. In a separate bowl, whisk together the eggs, vegetable oil, and vanilla extract.
  3. Pour the wet ingredients into the dry ingredients and mix until a thick dough forms.
  4. Cover the dough with plastic wrap and refrigerate for at least 1 hour.
  5. Preheat the oven to 350°F and line a cookie sheet with parchment paper.
  6. In a small bowl, combine the remaining 1/2 cup Fruity Pebbles cereal and the white sugar.
  7. Using a large cookie scoop, portion the dough into 12-14 balls. Roll each dough ball in the cereal and sugar mixture until coated.
  8.  Place the coated dough balls on the prepared baking sheet. Do not flatten.
  9. Bake for 10-11 minutes until the cookies are set around the edges but still soft in the center.
  10. Immediately after baking, gently press each cookie down using the flat base of a large mug until about 1/4 to 1/2-inch thick.
  11. Place the open end of the mug over each cookie and make small circular motions to create a neat bakery-style shape.
  12.  Allow the cookies to cool completely on the baking sheet before serving. Enjoy!

Notes

  • Duncan Hines Yellow Cake Mix gives these cookies a soft sugar-cookie flavor that pairs especially well with Fruity Pebbles.
  • Do not skip the chilling time. It helps the cookies stay thick and prevents excess spreading.
  • The Fruity Pebbles and sugar coating creates a cereal milk inspired flavor without needing frosting or glaze.
 

Storage

  • Store cooled cookies in an airtight container at room temperature for up to 4 days.
  • Freeze baked cookies in an airtight container for up to 3 months.
 

Freezer Instructions

  • Roll the dough balls in the cereal and sugar coating before freezing.
  • Freeze on a parchment-lined baking sheet until solid, then transfer to a freezer-safe container or bag.
  • Freeze for up to 3 months.
  • Bake directly from frozen at 350°F, adding 1-2 minutes to the baking time if needed.
  • Keep the dough balls tall and use the mug shaping technique after baking.
 

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Nutrition

Calories: 248kcalCarbohydrates: 38gProtein: 3gFat: 9gSaturated Fat: 2gPolyunsaturated Fat: 5gMonounsaturated Fat: 2gTrans Fat: 0.1gCholesterol: 23mgSodium: 257mgPotassium: 34mgFiber: 1gSugar: 19gVitamin A: 141IUVitamin C: 1mgCalcium: 71mgIron: 1mg

Nutrition information is automatically calculated, so should only be used as an approximation.