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Leftover Halloween Candy Bar Blondies

Don't let that mountain of leftover Halloween candy go to waste! These incredibly easy and satisfying blondies are the perfect solution. Quick, chewy, and crowd-pleasing, they transform candy chaos into pure baked bliss!
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Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 16 bars
Course: Baked Goods, Dessert, Snack
Cuisine: American
Ingredients Equipment Method Notes

Ingredients
  

  • 2 cups brown sugar packed
  • 0.5 cup butter at room temperature
  • 2 eggs beaten
  • 2 tsp vanilla extract
  • 1.5 cups all-purpose flour
  • 2 tsp baking powder
  • 1 tsp salt
  • 1 cup chopped chocolate candy bar pieces Snickers, M&Ms, Hershey’s, Twix, Kit Kat – chopped into bite-sized pieces

Equipment

  • Oven
  • 9x13-inch glass baking pan
  • Large Mixing Bowl
  • Medium-sized Bowl
  • Whisk
  • Spatula
  • Wooden toothpick

Method
 

  1. Step 1: Get Your Oven Ready: Preheat your oven to 350 degrees F (175 degrees C). Grease a 9x13-inch glass baking pan thoroughly.
  2. Step 2: Cream the Wet Ingredients: In a large mixing bowl, combine the packed brown sugar and room-temperature butter. Stir until creamy. Add the beaten eggs and vanilla extract, then stir again until beautifully combined and smooth.
  3. Step 3: Whisk the Dry Ingredients: In a separate, medium-sized bowl, whisk together the all-purpose flour, baking powder, and salt to ensure even distribution.
  4. Step 4: Combine and Conquer: Gradually add the flour mixture to the wet egg and sugar mixture. Stir only until the flour is just incorporated, being careful not to overmix.
  5. Step 5: Fold in the Fun: Gently fold in all the chopped chocolate candy bar pieces, ensuring they are distributed throughout the batter.
  6. Step 6: Spread the Love: Spoon the thick batter into your prepared 9x13-inch pan and spread it out evenly using the back of a spoon or a spatula.
  7. Step 7: Bake to Perfection: Place the pan on the center rack of your preheated oven. Bake for about 25 minutes, or until a wooden toothpick inserted into the center comes out clean. Keep an eye on them, as oven temperatures can vary.
  8. Step 8: Cool Down: Once baked, remove the blondies from the oven and let them cool in the pan for at least 10 minutes before slicing. This allows them to set properly for neat, chewy squares.

Notes

Substitutions & Additions: Feel free to experiment with different candies like fruity chews, peanut butter cups, or crunchy pretzels. Add ½ cup of chopped nuts (pecans, walnuts, almonds) for extra crunch, or an extra ½ cup of chocolate chips (milk, dark, or white) for more chocolatey goodness. For a decadent finish, drizzle with melted chocolate, caramel sauce, or a simple powdered sugar glaze once cooled. A pinch of cinnamon or nutmeg can add a warm, cozy note.
Tips for Success: Avoid overmixing the batter, as this can lead to tough blondies. Ensure butter and eggs are at room temperature for a smoother batter. Always grease your pan well, or line with parchment paper for easier removal. Use the toothpick test as a guide; a few moist crumbs are acceptable for a fudgy center. Allow blondies to cool for at least 10 minutes before slicing to help them set.
Storage: Store cooled blondies in an airtight container at room temperature for 3-4 days, or in the refrigerator for up to a week. For longer storage, freeze individual squares tightly wrapped in plastic wrap and then placed in a freezer-safe bag for up to 3 months. Thaw at room temperature or warm gently in the microwave.