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A slice of peanut butter Halloween eyeball brownies on a white plate with a glass of milk and another slice with a bite taken out of it in the background.
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5 from 26 votes

Peanut Butter Halloween Eyeball Brownies

No tricks with these treats- These Halloween Peanut Butter Brownies with Eyeballs are spooky fun and so yummy with Reese’s cups and candies, your favorite brownie mix, and eyeballs-- as you can clearly see!
Author: Nikki Lee
Servings: 16 slices
Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes

Ingredients

Brownie Ingredients

  • 1 box (18.3 ounce) Duncan Hines Chewy Fudge Brownies (plus ingredients to make on package: 2 eggs, ¼cup water OR milk, ½ cup vegetable oil)

Ganache Ingredients

  • ¼ cup black melting wafers
  • ¼ cup orange melting wafers
  • ¼ cup white melting wafers
  • cup heavy whipping cream divided (1 tbsp + 1-1/4 tsp per color)

Topping Ingredients

  • ¼ cup Reese's Pieces
  • ¼ cup Reese’s Peanut Butter Cups Minis
  • ¼ cup Reese’s Peanut Butter Chips
  • orange sanding sugar
  • Candy Eyeballs (get two different sizes)

Instructions

Brownie Instructions

  • Preheat the oven to 350° F and line a baking pan with parchment paper. This will make removing the brownies from the pan much easier.
    I used a 9x13 baking pan but you can also use an 8x8, 9x9, or 11x7 if you want a thicker brownie. Make sure to adjust the cooking time per box instructions.
  • In a large mixing bowl, prepare the brownie mix as per box instructions, being sure not to overmix. Replacing the water with milk or chocolate milk will make the brownies more flavorful.
  • Pour the brownie batter into the parchment-lined baking pan and spread evenly, being sure to fill the corners. Then place in the oven and bake as per box instructions, about 20-25 minutes, or until a wooden pick inserted into the center comes out mostly clean (with just a few crumbs). Transfer the pan to a wire rack and let it completely cool before frosting and decorating.

Ganache Instructions

  • Heat the heavy whipping cream in the microwave or stovetop just until it starts to bubble. Spooning divided amount into each bowl (color) of melting wafers. Let it sit for about 1 minute and then stir each one until the wafers are fully melted. If you would like a thinner ganache, add more heavy whipping cream. To thicken it, add more melting wafers. Set aside.
  • Once the brownies have cooled, add drops of the different colored ganache on top and alternate the colors. You can leave it as is or create swirls and designs to mix the colors up.

Topping Instructions

  • Scatter Reese’s chocolates and peanut butter chips on top. Then add eyeballs and orange sanding sugar. Get creative and have fun with your toppings. Enjoy!

Video

Nutrition

Serving: 1brownie | Calories: 232kcal | Carbohydrates: 34g | Protein: 3g | Fat: 10g | Saturated Fat: 5g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 3g | Cholesterol: 6mg | Sodium: 126mg | Potassium: 30mg | Fiber: 0.4g | Sugar: 24g | Vitamin A: 75IU | Vitamin C: 0.04mg | Calcium: 9mg | Iron: 1mg