Easy Halloween Cookie Bars
You’re going to love these easy Halloween Cookie Bars! They’re a great way to make a sweet treat during the spooky time of the year. These are so much better than anything that you’d buy at the grocery store! Trust me when I say that these loaded cookie bars are crazy good.
These are my favorite way to combine brownies and cookies. These chewy cookie bars offer the most amazing Halloween cookies loaded with spooky sprinkles. They’re so much fun to make!
If you love recipes like this, you may also enjoy these Large Halloween Marshmallow Pops with Candy Melts and Sprinkles! You can never have too many Halloween desserts.
Why you’ll love these Golden Brown Chocolate Chip Cookie Bars
- It’s an easy recipe that delivers an unbelievable chewy texture
- It’ll be a huge hit at Halloween parties or a just a simple family treat
- It’s the perfect treat for the spookiest time of year!
Ingredients Needed
- Boxes of Brownies mix – Choose your favorite brand.
- Additional ingredients listed on the Brownie boxes
- Creamy peanut butter – Use your favorite brand.
- Unsalted butter – Make sure it’s at room temperature.
- Light brown sugar – Pack tight when measuring.
- White sugar – For sweetness.
- Eggs – Needed to help bind together the dry ingredients.
- Pure vanilla extract – Adds flavor!
- All-purpose flour – You can sift if you’re worried about lumps.
- Baking soda – Used to help adda chewy texture.
- Kosher salt – Just a pinch.
- Quick oats – For texture and chew.
- Miniature chocolate chips – You can use regular-sized as well.
- Halloween Sprinkles – Pick out your favorite.
- Unsalted sweet cream butter – Make sure it’s softened.
- Powdered sugar – For the sweetness in the frosting.
- Heavy whipping cream – Needed for texture.
- Neon Green gel food coloring – Gel food coloring works best.
- Mini candy eye decorations – Edible googly eyes!
How to Make Brownie Cookie Bars
See the recipe card below for a complete list of ingredients and measurements.
Step One: Preheat the oven to 350 degrees. Prep 9 X 13-inch baking pan with nonstick baking spray. Line the baking pan with parchment paper with extra on the four sides.
Step Two – Make the brownies
- Follow the ingredient list and baking directions listed on the back of the boxes. Put the batter in the prepared baking pan. (Photo 1)
- Set aside.
Step Three – Make the cookie dough
- Use the paddle attachment of the electric mixer to combine.
- Add the brown sugar, white sugar, eggs, and vanilla. (Photo 2)
- Beat until completely mixed.
- In a second bowl, add flour, baking soda, and salt. (Photo 3)
- Whisk to blend.
- Add the oats and chocolate chips.
- Beat to blend all ingredients together.
- Use a serving spoon to drop the oatmeal mixture over the brownie batter. Sprinkle the Halloween sprinkles over the top. (Photo 4)
- Bake at 350 degrees for 25-25 minutes. (Photo 5)
- Insert a toothpick in the center to see if it is done.
- When done, set on a counter for at least 30 minutes to cool.
- Remove from the baking pan.
Step Four – Make the frosting
- Using a standing mixer, beat the butter, powdered sugar, vanilla, and heavy whipping cream with the paddle attachment until combined, creamy, and stiff.
- Beat in a few drops of neon green food coloring and mix until blended
- Scoop the frosting into the piping bag Pipe big and small dollops on the brownies, Place two mini candy eyes in the frosting. Allow frosting to firm up before enjoying!
Storing Leftovers
If you have any left, you just need to store them in an airtight container at room temperature. They should stay fresh for 2-3 days.
Substitutions or Variations
You can easily make leftover Halloween candy cookie bars! Just add candy bars pieces or Reese’s pieces and have fun! These can take the place of chocolate chips.
Recipe FAQs
You can! Just let them cool down all the way and then add them to freezer-safe bags or containers. Eat them within 3 months for the best flavor and taste.
You can easily add more fun sprinkles or even candy pieces. It’s totally up to you if you want to change up the toppings and frosting.
More Halloween Recipes You’ll Love
- Easy 5 Ingredient Ghost Halloween Cupcakes: A Spooky Treat
- No-Bake Halloween Treat: Chocolate Swiss Roll Bat Cake
- Red Velvet Halloween Spider Cookies
- See all our desserts and treats!
Or any other delicious recipes on my site? If so, please leave a ★★★★★ star rating below and a 📝 comment sharing your thoughts!
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Easy Halloween Cookie Bars
Ingredients
To make the brownies:
- 2 boxes Brownie mix
- other ingredients listed on the brownie box
To make the cookie dough:
- ⅔ cup (172 g) creamy peanut butter
- 4 tbsp Unsalted Butter room temperature
- ½ cup (110 g) light brown sugar
- 4 tbsp white sugar
- 2 eggs
- 1 tsp pure vanilla extract
- ⅔ cup (83 ⅓ g) all-purpose flour
- ½ tsp baking soda
- ½ tsp kosher salt
- ½ cup (40 g) quick oats
- ½ cup (90 g) mini chocolate chips
- 1 cup (236 ⅗ g) Spinkles Halloween colors
To make the vanilla frosting:
- ½ cup (113 ½ g) unsalted sweet cream butter softened
- 2 cups (240 g) powdered sugar
- 2 tsp pure vanilla extract
- gel food coloring neon green
- mini candy eyeballs
Instructions
- Preheat oven
350 °F (177 °C) degrees - Prep 9 X 13 inch baking pan with nonstick baking spray. Line the baking pan with parchment paper with extra on the four sides.
To make the brownies:
- Follow the ingredient list and baking directions listed on the back of the boxes.
- Put the batter in the prepared baking pan. Set aside.
To make the cookie dough:
- Add the peanut butter and soft butter in a mixing bowl.
- Use the paddle attachment of the electric mixer to combine.
- Add the brown sugar, white sugar, eggs, and vanilla.
- Beat until completely mixed.
- In a second bowl add flour, baking soda and salt.
- Whisk to blend.
- Add the oats and chocolate chips.
- Beat to blend all ingredients together.
- Use a serving spoon to drop the oatmeal mixture over the brownie batter.
- Sprinkle the Halloween sprinkles over the top.
- Bake at350 °F (177 °C) degrees for 25-25 minutes.
- Insert a toothpick in the center to see if it is done.
- When done, set on a counter for at least 30 minutes to cool.
- Remove from the baking pan.
To make the frosting:
- Using a standing mixer, beat the butter, powdered sugar, vanilla and heavy whipping cream with paddle attachment until combined, creamy and stiff
- Beat in a few drops of neon green food coloring and mix until blended
- Scoop the frosting into the piping bag
- Pipe big and small dollop on the brownies
- Place two mini candy eyes in the frosting
- Allow frosting to firm up before enjoying!
Nutrition Information
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