Heavenly Reeses Pieces Chocolate Chip Cookie Bars Recipe

Mixing Reese’s pieces into a classic chocolate chip cookie bar creates a nostalgic dessert that sparks instant joy.

Sweet memories dance across your palate with each decadent bite.

Childhood favorite candies blend perfectly with rich, buttery dough.

chocolate and peanut butter lovers will absolutely adore this simple yet irresistible treat.

Soft, chewy textures combine with intense flavor profiles that make ordinary cookie bars extraordinary.

Each square promises a delightful surprise of melted chocolate and scattered candy pieces.

Grab a plate and let the magic begin – this recipe will become your new weekend baking obsession.

  • Enjoy Kid-Friendly Treat: Perfect dessert that children and adults will absolutely love, packed with colorful Reese's Pieces and classic chocolate chips.
  • Quick Crowd-Pleaser Bars: Simple one-pan recipe that delivers delicious results without complicated steps, making it ideal for gatherings, potlucks, or casual family desserts.
  • Customizable Sweet Indulgence: Easily adaptable recipe where bakers can experiment with different chocolate types or add extra mix-ins to suit personal taste preferences.
  • Stress-Free Baking Experience: Straightforward preparation process requiring minimal kitchen skills, ensuring even beginner bakers can create a delectable dessert with confidence.
Base Ingredients:
  • Butter: Provides rich flavor and helps create a soft, tender texture for the cookie bars.
  • Brown Sugar: Adds moisture and a deep caramel-like sweetness to the bars.
  • Granulated Sugar: Helps create a crisp exterior and enhances overall sweetness.
  • Flour: Forms the primary structure of the cookie bars.
Binding Ingredients:
  • Eggs: Bind the ingredients together and contribute to the bars' structure and richness.
  • Vanilla Extract: Enhances the overall flavor profile with its warm, sweet aroma.
Flavor and Texture Enhancers:
  • Baking Soda: Helps the bars rise and creates a soft, tender crumb.
  • Salt: Balances the sweetness and amplifies the other flavors in the recipe.
  • Chocolate Chips, Reeses Pieces: Add delightful bursts of chocolate and peanut butter flavor throughout the bars.

Step 1: Prepare Baking Station

Warm up your oven to 350F (175C).

Grab a 9×13 inch baking pan and give it a generous coating of grease to prevent sticking.

Step 2: Create Creamy Base

In a spacious mixing bowl, transform softened butter, brown sugar, and granulated sugar into a fluffy, cloud-like mixture by beating them together until they’re light and airy.

Step 3: Introduce Moisture Magic

Pour in vanilla extract and crack eggs into the creamy blend.

Whisk vigorously until everything melds into a smooth, uniform texture.

Step 4: Craft Dry Ingredient Blend

Grab another bowl and combine:
  • All-purpose flour
  • Baking soda
  • Salt

Gently incorporate this dry mixture into the wet ingredients, stirring just until everything comes together without overmixing.

Step 5: Sprinkle Chocolate Delight

Fold in your favorite chocolate chips and colorful Reeses Pieces.

Make sure these sweet morsels are evenly distributed throughout the dough for maximum flavor in every bite.

Step 6: Bake To Perfection

Spread the cookie dough evenly across the prepared pan, creating a smooth surface.

Slide into the preheated oven and bake for 25-30 minutes.

You’ll know it’s ready when the edges turn golden and a toothpick comes out clean from the center.

Step 7: Cool And Slice

Let the bars rest in the pan until they cool completely.

Then slice into delectable squares and watch them disappear in minutes!

  • Use exact measurements for flour and sugars to ensure the perfect texture and sweetness in your cookie bars.
  • Let butter sit at room temperature for 30-45 minutes before creaming to achieve a smooth, fluffy mixture.
  • Stir dry ingredients just until combined to keep the bars tender and avoid a tough, dense texture.
  • Sprinkle some Reese's Pieces on top of the dough before baking for a more visually appealing and flavorful result.
  • Watch the edges for golden brown color and use the toothpick test to avoid overbaking, which can dry out the bars.
  • Gluten-Free Version: Replace all-purpose flour with a gluten-free flour blend, ensuring the same texture and taste for those with wheat sensitivities.
  • Vegan Chocolate Chip Bars: Swap butter with coconut oil, use egg replacer or mashed banana, and choose dairy-free chocolate chips for a plant-based treat.
  • Nutty Crunch Edition: Mix in chopped almonds or pecans to add extra crunch and depth of flavor to the classic cookie bars.
  • Healthier Alternative: Reduce sugar by using monk fruit sweetener, incorporate whole wheat flour, and add chia seeds for additional nutrition and texture.
  • Party Platter Paradise: Create a colorful dessert board with these cookie bars as the star, surrounding them with fresh berries, whipped cream, and a scoop of vanilla ice cream.
  • Movie Night Treat: Slice bars into bite-sized pieces perfect for sharing during film marathons, pairing wonderfully with cold milk or hot cocoa.
  • Lunchbox Love: Wrap individual squares in parchment paper for kids' school snacks or adult workplace treats, adding a sweet midday surprise.
  • Gift-Worthy Goodness: Package bars in clear cellophane with a ribbon, making delightful homemade gifts for friends, teachers, or weekend hosts.
  • Store cooled cookie bars in an airtight container with wax paper between layers. Keep refrigerated for up to 5 days, maintaining their soft texture and preventing staleness.
  • Wrap individual bars tightly in plastic wrap, then place in a freezer-safe container. Freeze for up to 3 months, preserving their delicious flavor and texture.
  • Keep bars in a sealed container at room temperature for 2-3 days, ensuring they remain fresh and tasty. Place in a cool, dry spot away from direct sunlight.
  • Warm refrigerated or frozen bars in the microwave for 10-15 seconds, or in a preheated oven at 300F for 5 minutes. Restore their gooey, fresh-baked warmth and soft consistency.

FAQs

  • Are Reeses Pieces and chocolate chips necessary for this recipe?

Yes, they add texture, flavor, and signature sweetness to the cookie bars. Both ingredients create a delightful crunch and chocolate burst in every bite.

  • Can I use different types of chocolate chips?

Absolutely! You can substitute milk, dark, or white chocolate chips based on your preference. Each type will bring a unique flavor profile to the cookie bars.

  • Is it important to cream butter and sugar until light and fluffy?

Yes, creaming creates air pockets that help the bars become soft and tender. Proper creaming ensures a better texture and helps the bars rise evenly during baking.

  • How do I know when the cookie bars are perfectly baked?

Look for golden edges and a toothpick that comes out clean from the center. This indicates the bars are cooked through but still maintain a soft, chewy texture.

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Reeses Pieces Chocolate Chip Cookie Bars Recipe


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4.8 from 29 reviews

  • Total Time: 45 minutes
  • Yield: 24 1x

Description

Reeses pieces chocolate chip cookie bars blend sweet and salty indulgence into one irresistible dessert. Chocolate lovers will savor rich layers of creamy peanut butter chips and classic chocolate chip goodness in each delectable square.


Ingredients

Scale

Main Ingredients:

  • 2 large eggs
  • 1 cup unsalted butter, softened (227 grams)
  • 2 1/4 cups all-purpose flour (280 grams)
  • 1 cup semi-sweet chocolate chips (170 grams)
  • 1 cup Reeses Pieces candies (170 grams)

Sugars:

  • 3/4 cup brown sugar, packed (150 grams)
  • 3/4 cup granulated sugar (150 grams)

Flavor and Binding Ingredients:

  • 1 teaspoon vanilla extract
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt

Instructions

  1. Prepare the oven at 350°F (175°C) and coat a 9×13 inch baking pan with non-stick spray or butter.
  2. In a spacious mixing bowl, thoroughly blend softened butter with brown and granulated sugars until the mixture becomes airy and pale.
  3. Incorporate vanilla extract and eggs into the sugar-butter mixture, whisking until completely smooth and uniform.
  4. Separately combine flour, baking soda, and salt, then gently integrate these dry ingredients into the wet mixture, stirring minimally to prevent overmixing.
  5. Delicately fold chocolate chips and Reeses Pieces throughout the dough, ensuring an even distribution of colorful candy pieces.
  6. Transfer the cookie dough to the prepared pan, using a spatula to create an even, smooth layer that reaches all corners.
  7. Place in the preheated oven and bake for 25-30 minutes, watching for golden-brown edges and a center that sets without appearing raw.
  8. Remove from oven and let the bars cool completely within the pan to allow proper setting and easier cutting.
  9. Once cooled, slice into square servings and enjoy the rich, candy-studded treat.

Notes

  • Soften butter completely at room temperature for smoother, more even mixing that creates a tender cookie bar texture.
  • Use parchment paper with overhanging edges for easy removal and clean cutting of bars without sticking.
  • Customize by swapping Reese’s Pieces with alternative mix-ins like peanut butter chips, M&Ms, or chopped nuts for variety.
  • Reduce baking time by 2-3 minutes for gooier, chewier bars or add extra minutes for crispier edges depending on personal preference.
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Desserts, Snacks
  • Method: Baking
  • Cuisine: American

Nutrition

  • Serving Size: 24
  • Calories: 212 kcal
  • Sugar: 16 g
  • Sodium: 110 mg
  • Fat: 11 g
  • Saturated Fat: 6 g
  • Unsaturated Fat: 4 g
  • Trans Fat: 0.1 g
  • Carbohydrates: 27 g
  • Fiber: 1 g
  • Protein: 2 g
  • Cholesterol: 28 mg
Nathaniel Brooks

Nathaniel Brooks

Founder & Recipe Developer

Expertise

Farm-to-table cuisine, Seasonal recipe development, Culinary storytelling

Education

Ivy Tech Community College – Indianapolis, IN
Culinary Arts / Hospitality Administration & Events
Focused on hands-on training in classical and modern culinary techniques. ​


Nathaniel’s story starts in the foothills of the Appalachian Mountains, where farm stands, backyard gardens, and old family recipes shaped his love for real food. After graduating from Ivy Tech Community College in Indianapolis, he spent years working in farm-to-table kitchens, learning how to turn local, seasonal ingredients into something memorable.
Today, Nathaniel pours that same spirit into every single recipe on Aspiring Culinarian – recipes that feel real, comforting, and connected to the land. When he’s not in the kitchen, you’ll find him foraging wild herbs, chasing sunsets with his camera, or writing about the flavors that shaped his roots.

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