Every bite is as delicious as your favorite Girl Scout Cookie
Most Thin Mint Cheesecakes don’t taste like the cookie that inspired them. The mint runs sharp instead of cool. The chocolate ganache sets dull and cracks when you slice it. The brownie base takes over the whole dessert. When I started testing this recipe, those were the exact problems I was trying to solve.
The 3 Changes That Made This Recipe Work
- Use a 16.3-ounce brownie mix so the cheesecake layer isn’t overpowered by the crust
- Keep mint extract in the filling only — not the ganache
- Add one tablespoon of clear corn syrup to the ganache for a glossy finish that won’t crack
Thin Mint Substitution
Keebler Grasshopper Cookies work in place of the Girl Guide’s Thin Mint Cookies. They are widely available and very similar to Thin Mints. The mint flavor is slightly softer, but they work perfectly in cheesecakes and chopped cookie filling.
View the complete recipe, including all the ingredients and steps by clicking here or going to the recipe card at the end of the post.
Recipe Tests – Jan-Feb 2026
What testing this recipe taught me (and how that helps the first time you make it)
The first version I baked didn’t work as well as I wanted it to. I used a standard brownie mix exactly as written and the crust baked up far thicker than the cheesecake layer. When I cut the first slice it looked like a brownie with a little cheesecake on top instead of an actual cheesecake.
When Angela, my recipe developer, and I were looking at how to fix the balance, she recommended switching to a 16.3-ounce box of milk chocolate brownie mix and make 1.5x the filling.
That adjustment worked. The cheesecake layers now lands close to a 2:1 ratio of filling to brownie, which keeps the mint cheesecake as the star while still giving you a rich chocolate base.
If you want to get even more out of your brownie mix, our tips for making better boxed brownies are worth reading before you start.
Mint flavor was the next problem.
Early versions had mint extract in both the filling and the ganache. Once the cake chilled, the top layer tasted sharp and overwhelmed the chocolate underneath. I reduced the mint in the filling to half a teaspoon and removed it from the ganache entirely.
If you love the mint chocolate combination, our Mint Chocolate Cheesecake takes it in a different direction.
The ganache needed fixing too. During one test the chocolate topping set dull and cracked when I sliced the cake. Stirring one tablespoon of clear corn syrup into the warm ganache solved it immediately. The chocolate stayed glossy and flexible even after a full night in the refrigerator.
When Making A Thin Mint Cheesecake
- The brownie base should look noticeably thinner than the cheesecake layer once it is baked. When I spread the batter into the springform pan, I aim for a shallow layer that barely covers the bottom. That visual cue keeps the cheesecake as the dominant layer in the final slice.
- If your brownie mix makes more batter than you need for the recipe, remove about half a cup of batter before baking so the crust stays thin and the ratio holds. You can bake the extra brownie mix in a small ramekin.
- When the filling is mixed properly the color becomes a uniform pale green with no streaks. If darker green ribbons are still visible the extract and food coloring have not fully blended into the cream cheese yet.
- If you see white flecks in your filling, your cream cheese wasn’t fully softened. It needs to be genuinely room temperature before you start.
- The ganache needs a short cooling window before it goes on the cake. Right after the cream melts the chocolate it will be thin and very warm. After about 5 minutes it thickens slightly and spreads smoothly across the top instead of melting into the filling underneath.
- This cheesecake needs a minimum of six hours in the fridge to set.
- To get clean slices, I run a hot knife and wipe it dry between every cut.
#1 Reason Your No Bake Cheesecake Fails
The most common reason readers tell us their no-bake cheesecake never sets is how the Cool Whip gets mixed in.
It’s very easy to treat the Cool Whip like another ingredient and beat it in with the mixer. When that happens, the air gets knocked out and the filling loses the fluffy texture that makes no-bake cheesecake work.
Instead, gently fold the whipped topping into the cream cheese mixture with a spatula. Use slow strokes, lifting the mixture from the bottom of the bowl and turning it over the top until no white streaks remain.
Thin Mint Cheesecake
Ingredients
For the Brownie Crust
- 16.3 ounce box milk chocolate brownie mix, plus ingredients needed on box
For The Thin Mint Cheesecake Layer
- 24 ounces full fat cream cheese, room temperature
- 1 ½ cup powdered sugar, sifted
- ¾ teaspoon vanilla extract
- ½ teaspoon mint extract
- 8 to 9 drops green food coloring, I used McCormick
- 8 ounces whipped topping (Cool Whip) thawed
- 20 thin mint cookies, Keebler Mint Delights can also be used
For The Chocolate Ganache Layer
- 1 cup semi-sweet chocolate chips I used Ghirardelli
- ½ cup heavy cream
- 1 tablespoon clear corn syrup
For The Decoration On Top
- 4 to 6 ounces whipped topping (Cool Whip) thawed
- 7 thin mint cookies Keebler Mint Delights can also be used
Instructions
For The Brownie Crust
- Preheat the oven to 350°F. Lightly spray a 9-inch springform pan with non-stick baker’s spray and set aside.
- Follow the directions on the back of the box and combine brownie mix with the ingredients called for.
- Spread the brownie mix into the prepared springform pan.
- Bake for 30 minutes or just until a toothpick inserted into the center comes out with a few moist crumbs.
- Allow the brownie to cool completely at room temperature before adding the cheesecake layer.
For The Thin Mint Cheesecake Layer
- In a large bowl, using a handheld mixer on medium-high speed, cream together the softened cream cheese and powdered sugar for 2-3 minutes or until light and fluffy.
- Add the vanilla extract, mint extract, and green food coloring. Mix on low speed until fully incorporated and the mixture is a uniform green color.
- Gently fold in the thawed Cool Whip until no white streaks remain. If your filling is not a dark enough green, you can stir in another 1-2 drops if desired.
- Very gently fold in the chopped thin mint cookies just until evenly distributed.
- Spread the cheesecake mixture evenly over the top of the cooled brownie and set aside.
For The Chocolate Ganache
- In a small microwave safe bowl, heat the semi-sweet chocolate chips and heavy cream on high for 1 minute. Allow the warm chocolate to sit for 30-45 seconds, stir until smooth. Stir in the corn syrup until fully incorporated. The ganache should be smooth and glossy. Allow the ganache to cool for 5 minutes before spooning over the cheesecake layer and spreading to an even layer.
- Refrigerate the thin mint cheesecake for a minimum of 6 hours, up to overnight, or until the cheesecake has firmed up enough to easily slice. The longer overnight chill helps to ensure cleaner slices.
- Once chilled, remove the outer ring of the springform pan. You may need to run a small sharp knife around the inside edges of the cheesecake to allow the outer ring to easily be removed.
For The Decoration On Top
- Once ready to slice and serve, add 4-6 ounces of thawed whipped topping to a large pastry bag fitted with a decorative piping tip, and pipe 10 dollops around the outer edges of the cheesecake. You want to have one dollop per sliced serving.
- Add a halved cookie into the center of each dollop of whipped topping (rounded side up).
- Finely chop the remaining 2 cookies and sprinkle the crumbs over the whipped topping dollops for added garnish if desired.
Notes
Nutrition
Frequently Asked Questions
Yes. Whip one cup of heavy cream with half a cup of powdered sugar until firm peaks form and fold it in.
Baking aisle, next to the vanilla. The bottles look almost identical so check the label before you buy.
Yes. Bake the brownie base in a 9-inch square pan and spread the filling over it. You will scoop the dessert instead of slicing wedges.
Store covered in the refrigerator for up to four days. For longer storage freeze individual slices wrapped tightly and thaw overnight in the refrigerator before serving.
If you want something in the same mint chocolate family but without the baking, our Mint Oreo Dessert comes together in minutes.
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