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rainbow sprinkle dessert
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St. Patrick's Day Cake Mix Cookie Bars

St. Patrick's Day Cake Mix Cookie Bars are tinted green, topped with cream cheese frosting and fun rainbow sprinkles for a festive dessert.
Course Dessert
Cuisine American
Keyword cake mix, cookie bars, frosted, rainbow, st patrick's day
Prep Time 12 minutes
Cook Time 26 minutes
Total Time 38 minutes
Servings 15 bars

Ingredients

Bars

  • 1 box vanilla or white cake mix
  • 1 box instant vanilla pudding 3.4 ounces - just the powder, don't make the pudding.
  • ¾ cup vegetable oil
  • ¼ cup water
  • 2 large eggs
  • 20 drops green food coloring

Frosting

  • 8 ounces cream cheese – the brick, not the whipped variety – room temperature
  • ½ cup butter 1 stick – room temperature
  • tsp pure vanilla extract
  • cups confectioner’s sugar

Decorate

  • 1/4 cup rainbow sprinkles - jimmies

Instructions

Bars

  • Preheat the oven to 350 degrees.
  • Grease a 9x13 baking dish. Set aside.
  • Combine the cake mix, pudding mix, oil, water and eggs in a large bowl. Mix well to combine.
  • Spread the mixture out into the prepared dish.
  • Bake 22-26 minutes or until set.
  • Cool completely before adding the frosting and sprinkles.

Frosting

  • In the bowl of a stand mixer fitted with the paddle attachment, beat the cream cheese until whipped.
  • Add in the butter and beat again until well blended.
  • Slowly mix in the vanilla and 1 cup of the confectioner’s sugar until just incorporated.
  • Continue adding the sugar, small portions at a time, and mixing until just incorporated.
  • Once the sugar is just blended in, increase the speed of the mixer and whip on high for 1-2 minutes to really aerate the frosting and get everything blended well.
  • You can then spread the frosting onto a cooled cake or cookies to decorate.