Halloween Peanut Butter Chocolate Monster Bars

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I am so excited to be a part of the 30 Days of Halloween series coordinated by Cupcake Diaries! Each day during the month of September, you will find a great Halloween themed recipe or printable shared as part of the series. Today, I’m sharing Halloween peanut butter chocolate monster bars. 

These chocolate dessert bars are so easy to make and taste amazing. They are also the perfect way to use up some leftover Halloween candy if you have any. You could easily switch out the M&Ms for different types of chopped up candy bars.

Halloween Peanut Butter Chocolate Monster Bar Ingredients

• Chocolate Chips – This recipe uses both milk chocolate and white chocolate chips. You could easily substitute the milk chocolate for dark or semi-sweet chips.
• Vegetable Oil
• Creamy Peanut Butter
• Vanilla Extract
• Powdered Sugar
• Halloween M&Ms

How to Make Chocolate Peanut Butter Bars

The full list of ingredients and instructions can be found in the printable recipe card below. Here is a brief overview of the steps to make these delicious peanut butter chocolate bars.

1. Prepare the pan. I use a 9×9 baking pan and line it with parchment paper.
2. Create the first layer of chocolate. Melt the milk chocolate chips with some of the oil. Once melted and smooth, pour into the prepared pan. Refrigerate.
3. Create the second layer. Combine the peanut butter, vanilla extract, and powdered sugar. Spread on top of chocolate layer.
4. Create the third layer. Melt the white chocolate chips and remaining oil. Pour over the peanut butter layer and sprinkle with the chocolate candies. Refrigerate.

I made these one day and then took them to work the next day. My co-workers absolutely loved them! I really like the peanut butter fudge layer in the middle. So delicious. 

Halloween Peanut Butter Chocolate Monster Bars

This quick and easy dessert will have everyone asking for seconds (and thirds)!

Print Pin Rate

Prep Time: 5 minutes minutes

Cook Time: 5 minutes minutes

Refrigeration Time: 40 minutes minutes

Total Time: 50 minutes minutes

Servings: 16 servings

Ingredients

First Layer

• 24 ounces milk chocolate chips
• 2 Tablespoons vegetable oil

Second Layer

• 1 1/2 cups creamy peanut butter
• 1 teaspoon vanilla extract

Third Layer

• 2 cups powdered sugar
• 12 ounces white chocolate chips
• 1 Tablespoon vegetable oil
• 1 cup Halloween M&Ms

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Instructions

• Line a 9×9 baking pan with parchment paper.
• Mix together milk chocolate chips and 2 Tbsp oil. Heat in microwave for 30 seconds. Stir and then heat in 10 second increments, string in between, until melted and smooth. Pour into prepared pan and spread into even layer. Place in refrigerator for 15-20 minutes.
  24 ounces milk chocolate chips, 2 Tablespoons vegetable oil
• Beat together peanut butter, vanilla and powdered sugar until smooth. Spread on top of milk chocolate layer.
  1 1/2 cups creamy peanut butter, 1 teaspoon vanilla extract, 2 cups powdered sugar
• Mix together white chocolate chips and remaining 1 Tbsp of oil. Pour over peanut butter mixture. Sprinkle with M&Ms. Refrigerate until firm.
  12 ounces white chocolate chips, 1 Tablespoon vegetable oil, 1 cup Halloween M&Ms

Nutrition

Calories: 618kcal | Carbohydrates: 69g | Protein: 7g | Fat: 37g | Saturated Fat: 16g | Polyunsaturated Fat: 5g | Monounsaturated Fat: 9g | Trans Fat: 0.04g | Cholesterol: 6mg | Sodium: 132mg | Potassium: 319mg | Fiber: 2g | Sugar: 62g | Vitamin A: 35IU | Vitamin C: 0.2mg | Calcium: 100mg | Iron: 1mg

Did you try this recipe? Please leave a comment below, snap a photo and tag it #MySuburbanKitchen on Instagram, or pin it to your Pinterest account!