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Unicorn Cake Mix Bars with Colorful Frosting Recipe

5 Stars 4 Stars 3 Stars 2 Stars 1 Star 4.4 from 111 reviews
  • Author: Paula
  • Prep Time: 20 minutes
  • Cook Time: 20 minutes
  • Total Time: 40 minutes
  • Yield: 16 servings
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
  • Diet: Vegetarian

Description

These Unicorn Bars are a fun and colorful twist on classic funfetti cake bars, topped with creamy, swirled cream cheese frosting in vibrant purple and blue hues. Perfect for celebrations or a whimsical treat, these bars combine a moist funfetti cake base with a fluffy, lightly sweetened frosting that is both visually stunning and delicious.


Ingredients

Scale

Bars

  • 15.25 ounces box funfetti cake mix
  • 1 large egg
  • ½ cup salted butter (1 stick), melted
  • ½ cup heavy cream

Frosting

  • 8 ounces package cream cheese, room temperature
  • ½ cup salted butter (1 stick), room temperature
  • 3½ cups powdered sugar
  • 1-3 tablespoons heavy cream
  • 1 teaspoon vanilla extract
  • Purple food coloring
  • Blue food coloring
  • Sprinkles (optional garnish)


Instructions

  1. Prepare baking pan: Preheat your oven to 350°F (175°C) and lightly grease or line a 9×13 inch baking pan with parchment paper for easy removal.
  2. Mix the bars batter: In a large mixing bowl, combine the funfetti cake mix, egg, melted butter, and heavy cream until the batter is well blended.
  3. Bake the bars: Spread the batter evenly into the prepared pan and bake for 20-25 minutes, or until a toothpick inserted in the center comes out clean.
  4. Cool completely: Remove the bars from the oven and allow them to cool completely in the pan before frosting.
  5. Make the frosting base: Using a hand or stand mixer, beat together the cream cheese and butter in a large bowl until smooth and creamy.
  6. Add powdered sugar: Gradually add the powdered sugar, about ½ cup at a time, beating continuously until the mixture is light and fluffy.
  7. Incorporate cream and vanilla: Add the heavy cream and vanilla extract one tablespoon at a time while beating on high speed, until you achieve a spreadable, fluffy frosting consistency.
  8. Color the frosting: Divide the frosting into two bowls. Add purple food coloring to one bowl and blue to the other, folding gently until you get the desired shades.
  9. Frost the bars: Spread the colored frostings alternately over the cooled bars and swirl gently with a spoon or spatula to create a marbled unicorn effect.
  10. Garnish and serve: Optionally sprinkle with colorful sprinkles on top, then cut into squares and serve.

Notes

  • Due to the dairy content in the frosting, store the Unicorn Bars chilled in the refrigerator where they will keep fresh for up to 5 days.
  • For longer storage, wrap the bars well and freeze in a freezer-safe container for up to 2 months.
  • You can customize the bars by using any cake mix flavor such as chocolate, lemon, strawberry, or yellow cake.
  • Experiment with different extracts or liquids like orange juice or flavored milk in the frosting for varied tastes.
  • Feel free to substitute the cream cheese frosting with chocolate frosting, buttermilk frosting, or whipped topping according to your preference.

Nutrition

  • Serving Size: 1 bar (approx. 1/16th of the recipe)
  • Calories: 280
  • Sugar: 28g
  • Sodium: 210mg
  • Fat: 14g
  • Saturated Fat: 8g
  • Unsaturated Fat: 5g
  • Trans Fat: 0g
  • Carbohydrates: 35g
  • Fiber: 0.5g
  • Protein: 3g
  • Cholesterol: 50mg