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Easy Halloween Oreo Cake Bars Recipe

4.7 from 68 reviews

These Easy Halloween Oreo Cake Bars combine the delicious flavors of French vanilla cake mix and Halloween-themed Oreo cookies for a festive treat that’s perfect for parties and celebrations. With fun sprinkles and a simple no-fuss preparation, these bars are sure to delight kids and adults alike.

Ingredients

Scale

Cake Batter

  • 2 boxes French Vanilla Cake Mix
  • 1/2 cup Whole Milk
  • 1/2 cup Vegetable Oil
  • 2 Large Eggs
  • 1/2 cup Halloween Sprinkles

Toppings

  • 1 package (1 lb. 4 oz) Halloween Oreo cookies, coarsely chopped, divided
  • 1/2 cup Halloween Sprinkles

Instructions

  1. Preheat the Oven: Preheat your oven to 350°F (175°C) and line a 9×13-inch baking dish with parchment paper to ensure easy removal of the bars after baking.
  2. Mix the Batter: In a large mixing bowl, combine the two boxes of French Vanilla Cake Mix, whole milk, vegetable oil, and eggs. Use an electric mixer to beat the ingredients until they are fully incorporated and the batter becomes thick.
  3. Add Sprinkles to Batter: Fold 1/2 cup of Halloween sprinkles into the thick batter to add a festive touch and pops of color throughout the bars.
  4. Layer Oreo Cookies: Sprinkle half of the coarsely chopped Halloween Oreo cookies evenly into the bottom of the prepared baking dish. This creates a delicious cookie layer base.
  5. Add Batter Over Oreos: Carefully spoon the batter over the Oreo cookie layer in the baking dish. Spray an offset spatula with nonstick spray, then gently spread and smooth the batter to fill the pan evenly.
  6. Top with Sprinkles: Evenly sprinkle the remaining Halloween sprinkles over the batter surface to decorate and add crunch.
  7. Sprinkle Remaining Oreos: Scatter the remaining chopped Oreo cookies on top of the batter and gently press them down using your fingers or spatula so they stick to the batter.
  8. Bake the Bars: Place the baking dish in the preheated oven and bake for 20 to 25 minutes or until a toothpick inserted into the center comes out clean, indicating the bars are fully cooked.
  9. Cool and Serve: Allow the bars to cool completely in the pan before removing and cutting them into squares for serving. This ensures clean cuts and the best texture.

Notes

  • Make sure to line the baking dish with parchment paper for easy removal and cleanup.
  • The batter will be thick; spreading gently with a nonstick-sprayed spatula will help prevent tearing the parchment paper.
  • Use an electric mixer to fully incorporate ingredients for best texture.
  • Allow bars to cool completely before cutting to avoid crumbling.
  • Store leftovers in an airtight container at room temperature for up to 3 days.

Keywords: Halloween dessert, Oreo cake bars, easy cake bars, festive treats, Halloween party recipes