Buckeye Brownie Cookies – The Ultimate Chocolate & Peanut Butter Treat

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Buckeye Brownie Cookies – The Ultimate Chocolate & Peanut Butter Treat

If you love the classic combination of chocolate and peanut butter, these Buckeye Brownie Cookies will become your new favorite dessert! Featuring a rich, fudgy brownie cookie base and a luscious peanut butter buttercream filling, these cookies are truly irresistible. Whether you’re making them for a special occasion or just to satisfy your sweet tooth, this recipe is a must-try.

Why You’ll Love This Recipe

  • Rich & Decadent – The bittersweet chocolate and peanut butter filling create the perfect balance of flavors.
  • Soft & Chewy – The brownie-style cookies are soft on the inside with a slight chewiness on the outside.
  • Easy to Make – Simple ingredients and step-by-step instructions make these cookies approachable for any home baker.
  • Perfect for Any Occasion – Whether it’s a holiday gathering, bake sale, or just a treat for yourself, these cookies are sure to impress.

Ingredients

For the Brownie Cookies:

  • 8.5 oz. bittersweet chocolate (I used Ghirardelli)
  • 1/4 cup unsalted butter, softened
  • 1/2 cup brown sugar
  • 2 tablespoons granulated sugar
  • 2 eggs, room temperature
  • 1 teaspoon vanilla extract
  • 1 cup all-purpose flour
  • 1 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon salt

For the Peanut Butter Buttercream Filling:

  • 1/2 cup unsalted butter, softened
  • 1 cup peanut butter
  • 1 cup powdered sugar
  • 1 teaspoon vanilla extract
  • 1/2 teaspoon salt

Instructions

Step 1: Prepare the Brownie Cookie Dough

  1. Preheat your oven to 350°F (175°C). Line a baking sheet with parchment paper.
  2. In a microwave-safe bowl, melt the bittersweet chocolate and butter in 30-second intervals, stirring after each until smooth. Set aside to cool slightly.
  3. In a separate bowl, whisk together the brown sugar, granulated sugar, eggs, and vanilla extract until smooth and creamy.
  4. Pour the melted chocolate mixture into the sugar mixture and whisk until fully combined.
  5. Sift in the flour, baking soda, baking powder, and salt. Stir gently until just combined. Avoid overmixing to maintain a soft, chewy texture.

Step 2: Bake the Cookies

  1. Drop spoonfuls of dough onto the prepared baking sheet, spacing them about 2 inches apart.
  2. Bake for 9-10 minutes, or until the cookies have slightly set and appear cracked on top.
  3. Allow the cookies to cool on the baking sheet for 5 minutes, then transfer them to a wire rack to cool completely.

Step 3: Prepare the Peanut Butter Buttercream

  1. Using a hand mixer or stand mixer, beat the butter and peanut butter together until smooth and creamy.
  2. Add powdered sugar, vanilla extract, and salt, then mix until well combined and fluffy.

Step 4: Assemble the Cookies

  1. Spread or pipe a generous amount of peanut butter buttercream onto the bottom of one cookie, then sandwich it with another cookie.
  2. Repeat until all cookies are filled.

Tips for Perfect Buckeye Brownie Cookies

  • Use High-Quality Chocolate – Bittersweet chocolate adds a rich, deep flavor, so choose a good brand like Ghirardelli.
  • Don’t Overbake – The cookies should be just set when you remove them from the oven. They will continue to firm up as they cool.
  • Chill the Dough if Needed – If your dough is too soft to handle, chill it in the refrigerator for 20-30 minutes before scooping.
  • Pipe the Filling for a Clean Look – Using a piping bag makes the peanut butter buttercream look more professional.

Variations & Add-Ons

Chocolate Lover’s Version

  • Stir 1/2 cup chocolate chips into the cookie dough for extra bursts of chocolate in every bite.

Nutty Crunch Version

  • Add 1/4 cup chopped peanuts to the buttercream filling for extra crunch.

Salted Caramel Twist

  • Drizzle the finished cookies with caramel sauce and sprinkle a pinch of flaky sea salt for an indulgent twist.

Espresso Infused Cookies

  • Add 1 teaspoon of instant espresso powder to the dough for a subtle coffee flavor that enhances the chocolate.

Storage & Make-Ahead Tips

  • Room Temperature: Store assembled cookies in an airtight container for up to 3 days.
  • Refrigerator: Keep in the fridge for up to a week if you want a firmer filling.
  • Freezing: Store unassembled cookies and buttercream separately in the freezer for up to a month. Thaw before assembling.

Serving Suggestions

  • Enjoy with a glass of cold milk or a hot cup of coffee.
  • Serve as a decadent dessert with a scoop of vanilla ice cream.
  • Wrap in decorative packaging for a homemade gift during the holidays.

Final Thoughts

Buckeye Brownie Cookies are the perfect indulgence for chocolate and peanut butter lovers alike. Whether you’re making them for a special occasion or just treating yourself, this recipe delivers fudgy, rich, and satisfying results every time. Give them a try, and let us know your favorite variations!

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