These festive bars are gooey, colorful, and totally irresistible , perfect for spooky season parties or a fun weeknight bake with the kids!
Prep Time: 10 min |Cook Time: 20 min |Total Time: 30 min
Ingredients:
- 1 package Halloween Oreos, chopped
- 2 boxes French vanilla cake mix
- ½ cup (122 g) whole milk
- ½ cup (112 g) canola oil
- 2 eggs
- 1 cup (160 g) Halloween sprinkles
Step-by-Step Instructions:
- Preheat the oven to 350°F (177°C). Prep a 13×9-inch baking dish with nonstick spray.
- Chop the Halloween Oreos into bite-sized pieces. Sprinkle half across the bottom of the baking dish.
- In a large bowl, combine cake mix, eggs, oil, and milk using an electric mixer. The batter will be thick!
- Fold in the Halloween sprinkles and mix well .
- Carefully spread the batter over the Oreo base. Use a spatula sprayed with nonstick spray to gently smooth the top, making sure you reach all corners without moving the cookies.
- Press the remaining chopped Oreos into the top of the batter. Add another sprinkle of Halloween sprinkles for a festive finish.
- Bake for 20–25 minutes. Check at the 20-minute mark using a toothpick , if it comes out clean, they’re done.
- Let cool completely before slicing into bars.

Pro Tips:
- Swap in chocolate cake mix for extra chocolaty bars.
- Use any seasonal Oreos for different holidays!
- Store leftovers in an airtight container at room temp for 3 days.
Nutrition Info (Per Serving):
- Calories: 1302
- Carbohydrates: 220g
- Protein: 14g
- Fat: 43g
- Sugar: 129g
- Fiber: 4g
- Sodium: 1516mg
- Iron: 13mg
Flavor Experiments:
- Drizzle with white chocolate or orange candy melts
- Add candy eyeballs for a spooky touch
- Serve with a scoop of vanilla ice cream
Make It Once, Eat It All Week:
- Store cut bars in a sealed container for up to 3 days
- Freeze uncut bars for up to 1 month; thaw overnight and slice
- Reheat individual bars in the microwave for 10 seconds
Learn From Mistakes:
- I once tried to use regular sprinkles , they melted and disappeared! Stick with jimmies or seasonal ones
- Don’t skip spraying your spatula , the batter sticks like crazy


Festive Halloween Bars
- Total Time: 30 minutes
- Yield: 12 servings 1x
- Diet: Vegetarian
Description
These festive bars are gooey, colorful, and totally irresistible, perfect for spooky season parties or a fun weeknight bake with the kids!
Ingredients
Scale
- 1 package Halloween Oreos, chopped
- 2 boxes French vanilla cake mix
- ½ cup (122 g) whole milk
- ½ cup (112 g) canola oil
- 2 eggs
- 1 cup (160 g) Halloween sprinkles
Instructions
- Preheat the oven to 350°F (177°C). Prep a 13×9-inch baking dish with nonstick spray.
- Chop the Halloween Oreos into bite-sized pieces. Sprinkle half across the bottom of the baking dish.
- In a large bowl, combine cake mix, eggs, oil, and milk using an electric mixer. The batter will be thick!
- Fold in the Halloween sprinkles and mix well.
- Carefully spread the batter over the Oreo base. Use a spatula sprayed with nonstick spray to gently smooth the top, making sure you reach all corners without moving the cookies.
- Press the remaining chopped Oreos into the top of the batter. Add another sprinkle of Halloween sprinkles for a festive finish.
- Bake for 20–25 minutes. Check at the 20-minute mark using a toothpick, if it comes out clean, they’re done.
- Let cool completely before slicing into bars.
Notes
Pro Tips: Swap in chocolate cake mix for extra chocolaty bars. Use any seasonal Oreos for different holidays! Store leftovers in an airtight container at room temp for 3 days.
- Prep Time: 10 minutes
- Cook Time: 20 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 bar
- Calories: 1302
- Sugar: 129g
- Sodium: 1516mg
- Fat: 43g
- Saturated Fat: 6g
- Unsaturated Fat: 35g
- Trans Fat: 0g
- Carbohydrates: 220g
- Fiber: 4g
- Protein: 14g
- Cholesterol: 60mg