Brownie Mix Mint Chocolate Cookies

Name: Brownie Mix Mint Chocolate Cookies
Prep time: 10 min
Cook time: 15 min
Total time: 25 min
Yield: 24 cookies
Ingredients: 1 box brownie mix (family size); 1/3 cup vegetable oil; 2 large eggs; 1/2 cup mint chocolate chips; 1/4 teaspoon peppermint extract (optional); 1/4 cup all-purpose flour (if needed for thickness)

Highlighted under: Home Baking Ideas

I absolutely love the combination of rich chocolate and refreshing mint, which is why these Brownie Mix Mint Chocolate Cookies hold a special place in my heart. The beauty of this recipe lies in its simplicity; using brownie mix makes the process quick and effortless. The addition of mint leaves a delightful twist that takes these cookies to a whole new level. Whenever I whip up a batch, the aroma fills my kitchen, and I can't help but smile at the thought of sharing them with friends and family. They're always a hit!

Created by

Sophie Adams

Last updated on 2026-02-24T06:05:36.367Z

When I first experimented with this recipe, I was astounded by how quickly they came together. Using a brownie mix not only saves time but also guarantees a fudgy texture that contrasts beautifully with the crispy edges. I decided to incorporate mint chocolate chips for that refreshing touch, and it was a game changer. The balance of flavors is just right, making them incredibly moreish and perfect for any occasion.

Another tip I found invaluable is to chill the dough for 30 minutes before baking. This simple trick prevents the cookies from spreading too much, ensuring they remain thick and chewy. The first time I skipped this step, my cookies turned out flat, but since making this adjustment, they have been an absolute favorite in my house!

Why You Will Love These Cookies
Decadent chocolate flavor perfectly complemented by mint
Easy preparation using brownie mix for a quick treat
Soft, chewy texture with a slightly crisp exterior

The Magic of Brownie Mix

Using brownie mix in this cookie recipe not only simplifies the preparation process but also enhances the flavor profile. The mix already contains cocoa powder and sugar, which helps achieve that rich chocolate taste without needing to measure numerous ingredients. This also allows you to focus on the fun parts, like incorporating the mint chocolate chips! When choosing your brownie mix, opt for a high-quality brand to ensure the best flavor and texture in your final cookies.

Another advantage of starting with brownie mix is the moisture it brings to the batter. This contributes to the soft and gooey texture of the cookies. The fat from the vegetable oil complements the chocolate mix, ensuring the cookies remain fudgy and chewy rather than dry. If you prefer a softer cookie, consider adding an additional tablespoon of vegetable oil to your mixture.

Mint: A Refreshing Twist

Mint is the showstopper in these cookies, elevating the flavor beyond the ordinary chocolate chip cookie. The addition of mint chocolate chips provides bursts of rich mint flavor in every bite, perfectly complementing the dense brownie base. If you want to amplify the mintiness, feel free to add an extra 1/2 teaspoon of peppermint extract. However, be cautious, as too much mint can overpower the chocolate notes.

To introduce a fresh element, consider incorporating chopped fresh mint leaves into the dough along with the chips. This variation enhances the flavor profile with bright, herbaceous notes. Just finely chop the mint leaves and fold them into the batter gently to avoid bruising, as this preserves the vibrant flavor they bring to the cookies.

Perfecting Your Cookie Baking Technique

Chilling the dough is a critical step! By allowing the dough to rest in the refrigerator, you help prevent the cookies from spreading too much during baking. This helps achieve that ideal soft and chewy texture, while also giving the flavors a chance to meld. Aim for at least 30 minutes of chilling; if you have more time, chilling for up to an hour can enhance the flavor further.

When baking the cookies, keep an eye on them during the last few minutes. They are done when the edges are set and slightly firm, while the centers remain soft. A tip I like is to take them out of the oven when they still look a tad underbaked; they will continue to cook slightly on the baking sheet. This prevents a dry texture and ensures you get that perfect soft and chewy bite each time.

Ingredients

Cookies

1 box brownie mix (family size)
1/3 cup vegetable oil
2 large eggs
1/2 cup mint chocolate chips
1/4 teaspoon peppermint extract (optional)
1/4 cup all-purpose flour (if needed for thickness)

Mix everything well until combined!

Instructions

Preheat the Oven

Preheat your oven to 350°F (175°C) and line a baking sheet with parchment paper.

Mix Ingredients

In a large bowl, combine the brownie mix, vegetable oil, and eggs. Stir until just combined, then mix in the mint chocolate chips and peppermint extract.

Chill the Dough

Cover the bowl with plastic wrap and chill the dough in the refrigerator for about 30 minutes.

Scoop Cookies

Using a cookie scoop or tablespoon, drop rounded balls of dough onto the prepared baking sheet, spacing them about 2 inches apart.

Bake

Bake in the preheated oven for 12-15 minutes, or until the edges are set but the centers are still slightly soft.

Cool and Enjoy

Allow the cookies to cool on the baking sheet for 5 minutes before transferring them to a wire rack to cool completely.

Now it's time to enjoy your delicious cookies!

Pro Tips

For an extra minty kick, add a few drops of green food coloring to the dough before baking!

Storage and Freshness

Once baked, store your Brownie Mix Mint Chocolate Cookies in an airtight container at room temperature for up to a week. If you want to maintain their freshness and chewiness, consider placing a slice of bread in the container to absorb excess moisture, which helps prevent the cookies from becoming stale. For longer storage, you can freeze the cookies for up to three months.

To freeze, allow the cookies to cool completely before placing them in a single layer on a baking sheet. Once frozen, transfer them to a zip-top bag, removing as much air as possible. When you're ready to enjoy them, just thaw them at room temperature for about 30 minutes or warm them in the microwave for a few seconds for a freshly baked taste.

Serving Suggestions

These cookies are great on their own, but there are several fun serving ideas you can explore. Consider drizzling melted chocolate over the cooled cookies for an extra chocolatey indulgence, or serve them alongside a scoop of mint chocolate chip ice cream for a delightful dessert experience. A sprinkle of crushed candy canes or a dusting of powdered sugar can also add a festive touch, making these cookies perfect for holiday gatherings.

For a more decadent treat, sandwich two cookies together with mint frosting or a creamy filling of your choice. This can turn your simple cookie into a show-stopping dessert that’s sure to impress friends and family. Experiment with variations, like dipping half of each cookie in melted white or dark chocolate for added flair.

Troubleshooting Tips

If you find your cookies are spreading too much when baking, it could be due to a few reasons. Make sure to chill your dough thoroughly before baking, as this ensures the fat remains solid while baking. If your dough seems too soft despite chilling, adding an additional 1/4 cup of all-purpose flour can provide the necessary structure without compromising the rich brownie texture.

On the other hand, if your cookies come out too cakey, this may be due to overmixing the batter or utilizing too much flour. Always mix the ingredients just until combined. If you prefer a fudgier cookie, consider reducing the baking time slightly to ensure they retain that desirable gooey center.

Questions About Recipes

→ Can I use a different flavor of brownie mix?

Absolutely! You can substitute with any flavor you prefer, like caramel or peanut butter.

→ How should I store these cookies?

Store them in an airtight container at room temperature for up to 5 days.

→ Can I freeze the cookie dough?

Yes, you can freeze the dough for up to 3 months. Just thaw in the fridge before baking.

→ How do I make them gluten-free?

Use a gluten-free brownie mix and skip the all-purpose flour. They’ll still be fantastic!