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The Ultimate Buckeye Cookies Recipe

A nostalgic and irresistible dessert featuring a soft, rich chocolate cookie base, topped with a creamy peanut butter layer, and finished with a dreamy chocolate ganache. Easy to make and perfect for any occasion.
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Prep Time 40 minutes
Cook Time 16 minutes
Dough Chilling 1 hour
Total Time 56 minutes
Course: Cookies, Dessert
Cuisine: American
Ingredients Equipment Method Notes

Ingredients
  

For the Cookies
  • 1/2 cup unsalted butter room temperature
  • 2 cups semisweet chocolate chips
  • 1 1/2 cups all-purpose flour
  • 1/4 cup unsweetened cocoa powder
  • 1 1/2 tsp baking powder
  • 1/4 tsp salt
  • 1 1/4 cup light brown sugar packed
  • 3 large eggs room temperature
  • 1 1/2 tsp vanilla extract
For the Peanut Butter Layer
  • 1 1/4 cup creamy peanut butter
  • 6 tbsp unsalted butter room temperature
  • 1 tsp vanilla extract
  • Pinch salt
  • 1 1/2 cup confectioners' sugar
For the Ganache
  • 1 1/2 cups semisweet chocolate chips
  • 1/2 cup heavy whipping cream

Equipment

  • Microwave-Safe Bowl
  • Medium bowl
  • Large bowl
  • Hand Mixer or Stand Mixer
  • Baking Sheets
  • Parchment Paper
  • Medium cookie scoop (size 50)
  • Wire rack
  • Heatproof Bowl
  • Small saucepan
  • Whisk

Method
 

  1. Step 1: In a microwave-safe bowl, melt ½ cup unsalted butter and 2 cups semisweet chocolate chips in short 15-second bursts, stirring well after each, until smooth. Set aside to cool.
  2. Step 2: In a separate medium bowl, whisk together the flour, cocoa powder, baking powder, and salt until evenly distributed. Set aside.
  3. Step 3: In a large bowl, beat the light brown sugar, eggs, and 1 ½ tsp vanilla extract until combined and slightly fluffy.
  4. Step 4: Pour in the cooled melted chocolate mixture and mix until fully incorporated.
  5. Step 5: Gradually add the dry ingredients to the wet mixture on low speed, mixing just until combined. Do not overmix.
  6. Step 6: Cover the cookie dough and refrigerate for at least 1 hour.
  7. Step 7: Preheat your oven to 325°F (160°C). Line baking sheets with parchment paper.
  8. Step 8: Use a medium cookie scoop (size 50) to portion the dough. Roll each portion into a ball and place about 2 inches apart on prepared baking sheets.
  9. Step 9: Bake for 13-16 minutes, or until the tops look set. Let cool on the baking sheet for about 10 minutes before transferring to a wire rack to cool completely.
  10. Step 10: While cookies cool, prepare the peanut butter layer: In a bowl, combine creamy peanut butter and 6 tablespoons room temperature butter. Beat until smooth.
  11. Step 11: Mix in 1 tsp vanilla extract and a pinch of salt.
  12. Step 12: Gradually add confectioners' sugar, mixing on low speed until well combined and smooth, with a firm consistency.
  13. Step 13: Roll the peanut butter mixture into 1-inch balls, then gently flatten each into a thick disk.
  14. Step 14: Once chocolate cookies are completely cool, gently press a peanut butter disk onto the top of each cookie.
  15. Step 15: For the ganache, place 1 ½ cups semisweet chocolate chips in a heatproof bowl.
  16. Step 16: In a small saucepan, heat ½ cup heavy whipping cream over medium-low heat until steaming (tiny bubbles around edges), but not boiling.
  17. Step 17: Pour the hot cream over the chocolate chips. Let sit for 5 minutes without stirring.
  18. Step 18: After 5 minutes, whisk the mixture gently until completely smooth and glossy.
  19. Step 19: Spoon the ganache generously over each cookie, letting it drip down the sides.
  20. Step 20: Let the ganache set at room temperature for 30-60 minutes, or in the fridge for 15-20 minutes if in a hurry. Serve immediately.

Notes

Substitutions & Additions: Experiment with almond or cashew butter instead of peanut butter (adjusting sugar for consistency). Use milk or dark chocolate chips for different flavors in the cookie base and ganache, or try a white chocolate ganache. Add flaky sea salt, colorful sprinkles, or mini chocolate chips to the peanut butter layer, or a pinch of cayenne pepper to the ganache for a subtle warmth.
Tips for Success: Ensure butter and eggs are at room temperature for a smoother dough. Avoid overmixing the cookie dough to prevent tough cookies. Chilling the cookie dough for at least 1 hour is crucial for flavor and to prevent spreading. Ensure cookies are completely cool before adding the peanut butter layer to prevent melting. For a smooth ganache, do not boil the cream; let it steam and then let it sit for 5 minutes over the chocolate chips before whisking. For super neat ganache, chill the cookies with the peanut butter layer for 15-20 minutes before spooning on the ganache.
Storage: Store Buckeye Cookies in an airtight container at room temperature for up to 2-3 days. For longer freshness (up to a week), store in the refrigerator; let them come to room temperature for 10-15 minutes before serving. Cookies can be frozen without the ganache layer for up to 3 months (store chocolate cookies and peanut butter disks separately), then thaw and add fresh ganache when ready to serve. Fully assembled cookies can be frozen but ganache may lose some gloss.
Make Ahead: The cookie dough can be made 2-3 days in advance and stored in the refrigerator. Peanut butter balls can also be prepared ahead of time and stored in the fridge for easy assembly.