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Halloween Brookies Recipe | Spooky Brownie-Cookie Bars

When you can’t decide between brownies or cookies, why not have both? Halloween Brookies combine fudgy brownies, festive ghost-shaped sugar cookies, and colorful Halloween M&M’s into one irresistible bar. This recipe is quick, kid-friendly, and perfect for parties, bake sales, or a spooky Halloween night treat. Since it uses store-bought mixes, you don’t need to be a pro baker—just layer, bake, and enjoy gooey chocolate goodness with a festive twist.
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Prep Time 10 minutes
bake & Cooling Time 1 hour
Total Time 1 hour 10 minutes
Servings: 16 brookies
Ingredients Equipment Method Notes

Ingredients
  

  • 1 box brownie mix plus ingredients listed on the box, usually eggs, oil, and water
  • 1 package Pillsbury ghost-shaped sugar cookie dough
  • 1 package Halloween M&M’s

Equipment

  • 9x13-inch baking pan
  • Mixing bowl
  • Whisk or spatula
  • Non-stick spray or parchment paper
  • Measuring cup
  • Knife (for cutting bars)

Method
 

Step 1: Prepare the brownie batter
  1. Preheat oven to 350°F (175°C). Grease a 9x13-inch baking pan or line with parchment paper. Prepare the brownie mix according to package instructions. Pour batter into the prepared pan, spreading evenly.
Step 2: Add cookie dough layer
  1. Break apart the ghost-shaped sugar cookie dough and place pieces evenly over the brownie batter. Press them in gently.
Step 3: Add festive toppings
  1. Sprinkle Halloween M&M’s across the top for extra color and crunch.
Step 4: Bake
  1. Place the pan in the oven and bake for 35–40 minutes, or until a toothpick inserted in the center comes out with moist crumbs. Don’t overbake—the brookies should stay fudgy.
Step 5: Cool and cut
  1. Allow brookies to cool in the pan for at least 20 minutes before slicing into squares or rectangles. Serve and enjoy!

Notes

🧊 Storage & Reheating
Store in an airtight container at room temperature for up to 3 days.
Refrigerate for up to 1 week.
Freeze brookies (well wrapped) for up to 2 months.
Reheat in the microwave for 10–15 seconds for warm, gooey brookies.
🥄 Variations
Candy Swap: Use Reese’s Pieces or candy corn for a different look.
Homemade Upgrade: Make brownies and sugar cookie dough from scratch if you prefer.
Monster Brookies: Add candy eyeballs on top for extra spooky fun.
Pumpkin Spice Twist: Add 1 tsp pumpkin spice to the brownie mix for fall flavor.
Mini Brookies: Bake in a muffin tin for individual brookie cups.
❓ 10 FAQs
Do I need to bake the brownie mix first before adding cookies? – No, layer everything together and bake at once.
What size pan works best? – A 9x13-inch pan is perfect for thick brookies.
Can I use a different brand of cookie dough? – Yes, any sugar cookie dough works.
Can I make these gluten-free? – Yes, just use gluten-free brownie and cookie dough mixes.
How do I keep them fudgy? – Don’t overbake; take them out when a toothpick shows moist crumbs.
Can I double the recipe? – Yes, just use two pans or a larger one.
How do I cut them neatly? – Use a sharp knife and wipe between cuts.
Can I add extra chocolate? – Absolutely, chocolate chips make them even richer.
Can kids help with this recipe? – Yes, they’ll love layering the cookie dough and sprinkling M&M’s.
Are brookies best warm or cold? – They’re delicious both ways, but slightly warm makes them extra gooey.
🏁 Conclusion
Halloween Brookies are the ultimate festive mashup—fudgy brownies, gooey sugar cookies, and crunchy M&M’s in every bite. They’re easy to make, totally kid-friendly, and guaranteed to disappear fast at any party.
Whether you’re baking for a classroom treat, a spooky movie night, or just a fun fall dessert, these brookies deliver the perfect mix of chocolatey indulgence and Halloween spirit.