If you adore the refreshing zing of mint paired with rich, indulgent chocolate, you are in for a treat with this Mint Chocolate Cookie Bars Recipe. These bars masterfully combine a soft, chewy cookie base with a luscious mint filling and a silky chocolate topping, creating a delightful explosion of flavors in every bite. Whether you’re looking for a crowd-pleasing dessert or a sweet snack to brighten your day, these bars deliver that perfect balance of cool mint and decadent chocolate that feels both familiar and exciting.
Ingredients You’ll Need
Gathering these simple yet essential ingredients is your first step toward making an unforgettable Mint Chocolate Cookie Bars Recipe. Each component plays a critical role, whether it’s the buttery cookie base, the creamy mint filling, or the glossy chocolate topping that brings everything together.
- All-purpose flour, 1 1/2 cups: Provides the perfect structure and soft crumb to the cookie base.
- Baking soda, 1/2 tsp: Helps the cookie bars rise and become light and tender.
- Salt, 1/4 tsp: Enhances the overall flavor and balances the sweetness.
- Unsalted butter, 1/2 cup (for dough) + 1/2 cup (for filling) + 2 tbsp (for topping): Adds richness and a melt-in-your-mouth texture throughout the layers.
- Granulated sugar, 1 cup: Sweetens and helps create that classic cookie texture.
- Large egg, 1: Binds the dough ingredients together with a tender finish.
- Vanilla extract, 1 tsp: Adds depth and warmth to the flavor profile.
- Peppermint extract, 1/4 tsp for dough + 1 1/2 tsp for filling: Infuses the bars with that unmistakable mint flavor that makes this recipe exceptional.
- Mini chocolate chips, 1/2 cup (optional): Sprinkle into the dough for chocolate bursts in every bite.
- Powdered sugar, 1 1/2 cups: Creates a silky smooth mint filling that’s just sweet enough.
- Milk or heavy cream, 2 tbsp: Adjusts the mint filling’s consistency to creamy perfection.
- Green food coloring, a few drops (optional): Brightens up the mint layer with a fun, inviting hue.
- Semi-sweet chocolate chips, 1 cup: The luscious topping that seals in all the flavor.
How to Make Mint Chocolate Cookie Bars Recipe
Step 1: Prepare Your Baking Pan
Start by preheating your oven to 350°F (175°C). Take an 8×8-inch square baking pan and either line it with parchment paper or lightly grease it with butter or cooking spray. This ensures the bars come out cleanly without sticking, making for easy cleanup and perfect presentation.
Step 2: Combine Dry Ingredients
In a medium bowl, whisk together the all-purpose flour, baking soda, and salt. Mixing these dry ingredients well is important because it guarantees an even rise and balanced flavor throughout the cookie base of your Mint Chocolate Cookie Bars Recipe.
Step 3: Cream Butter and Sugar
In a large bowl, beat the softened butter and granulated sugar until the mixture turns light, fluffy, and pale. This process traps air, which is key to creating a soft, tender texture for the cookie layer.
Step 4: Add Egg and Extracts
Next, beat in the egg along with vanilla extract and peppermint extract. The peppermint extract even in this stage begins layering in the cool mint essence, preparing your taste buds for the delicious refreshment ahead.
Step 5: Mix Dry Ingredients Into Wet
Gradually fold the dry flour mixture into the wet ingredients until just combined. Overmixing could make the cookie tough, so take care to mix gently. If you want extra chocolate in the base, fold in the mini chocolate chips here, for those delightful gooey morsels throughout.
Step 6: Bake the Cookie Base
Spread the cookie dough evenly in your prepared pan, gently pressing it down to create a smooth, even layer. Bake this base for 12 to 15 minutes until the edges are lightly golden and a toothpick inserted in the center comes out clean. Then, let it cool completely right in the pan to prepare for the layers on top.
Step 7: Make the Mint Filling
While the base cools, prepare the luscious mint filling by beating together softened butter and powdered sugar until light and creamy. Stir in the peppermint extract for that unmistakable mint flavor. Add milk or cream a little at a time until the filling reaches a spreadable consistency. For a festive touch, a few drops of green food coloring bring that classic mint vibe to life.
Step 8: Spread the Mint Filling
Once the cookie base is at room temperature, evenly spread the mint filling over it, creating a smooth, thick layer that contrasts beautifully in flavor and color against the cookie.
Step 9: Top with Melted Chocolate
Finally, melt the semi-sweet chocolate chips together with butter until silky smooth. Pour this glossy chocolate layer over the mint filling and spread it gently with a spatula to cover completely. The chocolate layer seals in all the wonderful flavors and adds a rich, decadent finish to these bars.
Step 10: Chill and Set
Place the pan in the fridge to let the chocolate harden and the bars set firmly. This step ensures clean slicing and that perfect bite of mint and chocolate in every square.
How to Serve Mint Chocolate Cookie Bars Recipe
Garnishes
A dusting of powdered sugar, a sprinkle of crushed candy canes, or even a few fresh mint leaves make stunning garnishes for these bars. They not only enhance the visual appeal but also add a touch of extra flavor or texture that elevates the experience.
Side Dishes
Pair these bars with a scoop of vanilla ice cream or a dollop of whipped cream to balance their sweetness and highlight the mint chocolate combo. A hot cup of coffee or mint tea also complements them beautifully, rounding out a perfect dessert or snack moment.
Creative Ways to Present
Cut the bars into small bite-sized pieces and serve them on a festive platter for holiday parties, or stack layered bars between sheets of parchment for gift-giving. Wrapping individual bars in colorful wax paper or tins makes for charming homemade treats that your friends and family will rave about.
Make Ahead and Storage
Storing Leftovers
Store your Mint Chocolate Cookie Bars Recipe in an airtight container at room temperature for up to 3 days. For longer freshness, keep them refrigerated which also helps maintain the firm texture of the chocolate topping.
Freezing
You can freeze these bars by wrapping them tightly in plastic wrap and aluminum foil to prevent freezer burn. They keep well frozen for up to 2 months. When you’re ready, thaw them in the refrigerator overnight for best results.
Reheating
Since these bars are best enjoyed cool or at room temperature to preserve the chocolate’s texture, simply let them sit at room temp for about 20 minutes before serving if refrigerated. Avoid microwaving as it can melt the chocolate unevenly and make the bars soggy.
FAQs
Can I make the cookie base gluten-free for this Mint Chocolate Cookie Bars Recipe?
Absolutely! Substitute the all-purpose flour with a gluten-free baking blend made for cookies, and you should get a similarly delicious and tender base without gluten.
Is peppermint extract necessary, or can I use something else?
Peppermint extract is what gives this recipe its signature cool, minty flavor. However, if you prefer, you could try spearmint extract or even a few drops of mint-flavored liqueur to add a unique twist.
Can I make the bars vegan?
With some ingredient swaps — like using vegan butter, a flax egg instead of a regular egg, and dairy-free chocolate chips — these Mint Chocolate Cookie Bars can easily be adapted for a vegan diet.
How do I avoid the chocolate topping from cracking?
Melting the chocolate gently over a double boiler or in short bursts in the microwave with butter helps keep it smooth and less prone to cracking. Also, refrigerate it gently without shaking or sudden temperature changes.
Can I add nuts or other mix-ins?
Sure thing! Chopped walnuts, pecans, or crushed peppermint candies mix wonderfully either into the cookie base or sprinkled on top before the chocolate layer sets to add texture and flavor variety.
Final Thoughts
I genuinely hope you give this Mint Chocolate Cookie Bars Recipe a try because it’s one of those desserts that feels like a little celebration in every bite. The way the cool mint meets rich chocolate atop a soft cookie base is pure magic. Whether for a special occasion or just to treat yourself, these bars are sure to become a beloved favorite, just like they are in my kitchen. Happy baking and enjoy every minty, chocolatey crumb!
Print
Mint Chocolate Cookie Bars Recipe
- Prep Time: 20 minutes
- Cook Time: 15 minutes
- Total Time: 1 hour 35 minutes (including chilling time)
- Yield: 16-20 bars
- Category: Dessert
- Method: Baking
- Cuisine: American
Description
These Mint Chocolate Cookie Bars feature a soft, chewy cookie base infused with a hint of peppermint, topped with a creamy mint filling and finished with a rich layer of melted semi-sweet chocolate. Perfectly balanced with a refreshing mint flavor and indulgent chocolate, these bars make a delightful treat for any occasion.
Ingredients
Cookie Base:
- 1 1/2 cups all-purpose flour
- 1/2 tsp baking soda
- 1/4 tsp salt
- 1/2 cup unsalted butter, softened
- 1 cup granulated sugar
- 1 large egg
- 1 tsp vanilla extract
- 1/4 tsp peppermint extract (optional, for extra mint flavor)
- 1/2 cup mini chocolate chips (optional, for extra chocolate chunks in the base)
Mint Filling:
- 1/2 cup unsalted butter, softened
- 1 1/2 cups powdered sugar
- 1 1/2 tsp peppermint extract (or to taste)
- 2 tbsp milk or heavy cream (adjust for consistency)
- A few drops of green food coloring (optional, for a fun mint color)
Chocolate Topping:
- 1 cup semi-sweet chocolate chips
- 2 tbsp unsalted butter
Instructions
- Preheat Oven: Preheat your oven to 350°F (175°C). Line an 8×8-inch square baking pan with parchment paper or grease it with butter or cooking spray to prevent sticking.
- Combine Dry Ingredients: In a medium bowl, whisk together the all-purpose flour, baking soda, and salt. Set this aside for later.
- Cream Butter and Sugar: In a separate large bowl, cream together the softened butter and granulated sugar using a hand mixer or stand mixer until the mixture is light and fluffy, about 2-3 minutes.
- Add Wet Ingredients: Beat in the egg, vanilla extract, and peppermint extract (if using) until the mixture is well combined and smooth.
- Mix Dry and Wet Ingredients: Gradually add the dry flour mixture to the wet ingredients, mixing just until combined. Avoid overmixing to keep the cookie tender. If desired, fold in the mini chocolate chips gently.
- Form the Cookie Base: Spread the cookie dough evenly into the prepared baking pan. Press it down gently with your spatula or fingers to form a smooth, even layer.
- Bake the Cookie Base: Bake in the preheated oven for 12-15 minutes, or until a toothpick inserted into the center comes out clean. Remove from the oven and allow the cookie base to cool completely in the pan before proceeding to the next step.
- Prepare Mint Filling: While the cookie base cools, make the mint filling by beating the softened butter until creamy. Gradually add powdered sugar and continue beating until smooth. Mix in the peppermint extract and milk or heavy cream, adjusting the amount to reach a spreadable consistency. Add green food coloring if desired and beat until well combined.
- Apply Mint Filling: Once the cookie base is fully cooled, spread the mint filling evenly over the surface of the cookie layer, smoothing it out with a spatula.
- Melt Chocolate Topping: In a microwave-safe bowl or using a double boiler, melt the semi-sweet chocolate chips together with the 2 tablespoons of butter until smooth and glossy. Stir frequently to avoid burning.
- Top with Chocolate: Pour the melted chocolate over the mint filling layer and spread it evenly with a spatula, covering the entire surface.
- Chill to Set: Place the pan in the refrigerator for at least 1 hour or until the chocolate topping is fully set and firm.
- Cut into Bars: Remove from the refrigerator and lift the bars out of the pan using the parchment paper edges. Cut into 16 to 20 bars, depending on desired size.
- Serve and Enjoy: Serve these delicious mint chocolate cookie bars as a delightful, minty, chocolatey treat perfect for sharing or enjoying anytime.
Notes
- For a stronger mint flavor, increase the peppermint extract slightly but use it sparingly as it can be overpowering.
- Mini chocolate chips in the cookie base are optional but add delightful bursts of chocolate throughout.
- Make sure the cookie base is completely cooled before spreading the mint filling to prevent melting or mixing.
- The bars can be stored in an airtight container in the refrigerator for up to one week.
- Allow the bars to come to room temperature briefly before eating for the best texture and flavor.
