Folks have no idea how easy it is to make peppermint brownies at home. Just a few ingredients, plus a little peppermint extract and a frosting makes these perfect. After you try this, you might want to hang up the box for good boos.
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How To Make Peppermint Brownies
- Combine the melted butter, granulated sugar, and brown sugar in a medium mixing bowl and whisk together.
- Add the eggs one at a time, mixing after each one to fully incorporate them into the mixture.
- Add the oil and vanilla extract to the sugar and egg mixture.
- Slowly add in the flour, cocoa powder, baking soda, and salt in intervals until the batter is well mixed and smooth.
- Pour the brownie batter into a prepared 8×8-sized baking pan. Bake the brownies for 25-30 minutes or until a toothpick inserted into the center comes out just barely clean. Don’t overbake.
- When done cooking, remove the brownies and cool them on a cooling rack while you make the frosting.


Make the Frosting
- Add the butter to your stand mixer and mix on medium speed until fluffy.
- Add the cocoa powder and powdered sugar to the butter and start mixing on low speed. Speed up the mixer to medium speed as it begins to mix in, and continue mixing until everything is incorporated and fluffy.
- Add the vanilla extract, peppermint extract, and milk to the bowl. Mix until everything is mixed in. completely fluffy, and well incorporated.
- Spread the frosting over the brownies, then sprinkle with crushed peppermint. Cut the frosted peppermint brownies into squares and serve.

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Peppermint Brownies Recipe
Want to Save This Recipe, Boo?
Ingredients
For the Brownies:
- ½ cup unsalted butter, melted then cooled 1 stick
- ¾ cup granulated sugar
- ½ cup brown sugar packed
- 2 large eggs room temperature
- 1 tablespoon oil
- 2 teaspoons McCormick Pure Vanilla Extract
- ¾ cup all-purpose flour
- ½ cup cocoa powder
- ½ teaspoon baking soda
- ½ teaspoon salt
For the Peppermint Frosting:
- ½ cup unsalted butter room temperature
- ¼ cup cocoa powder
- 2 ½ cups confectioner’s sugar
- 1 teaspoon McCormick Pure Vanilla Extract
- ¼ teaspoon McCormick Pure Peppermint Extract
- 1 tablespoon milk
- Crushed peppermint for garnish
Instructions
For the Brownies:
- Preheat oven to 350 degrees and prepare 8×8 sized baking pan with parchment paper and non-stick spray.
- In a medium sized bowl, add melted butter, granulated sugar and brown sugar and whisk together.
- Next add in eggs one at a time, mixing after each addition to incorporate.
- Mix in oil and vanilla extract.
- In intervals, slowly add in flour, cocoa powder, baking soda and salt until batter is well mixed, smooth and all ingredients are well incorporated.
- Add brownie batter to 8×8 sized baking pan.
- Bake for 25-30 minutes or until a toothpick inserted into the center comes out just barely clean. Don’t overbake.
- Remove brownies and cool on cooling rack while you make the frosting.
For the Peppermint Frosting:
- Add butter to stand mixer and mix on medium speed until fluffy.
- Next slow down mixer to slowest speed and carefully add cocoa powder and powdered sugar to butter. Once it begins to mix in, speed the mixer up to medium speed and allow until everything is incorporated and fluffy.
- Then add in vanilla extract, peppermint extract and milk and mix until completely fluffy and well incorporated.
- Spread frosting over brownies then sprinkle with crushed peppermint. Cut into squares and serve.
Notes
How to Store
The best way to store peppermint frosted brownies is at room temperature. Wrap them up in plastic wrap or foil or place them in an airtight container. They will last up to three days stored at room temperature. They can also be stored in the fridge if you want to extend their shelf-life. Peppermint brownies can last in the fridge for up to a week when stored properly. You can freeze them in a freezer-safe container for up to three months.Nutrition
Recipe Tips
- Don’t overbake your brownies! Cook them just until a toothpick inserted in the middle comes out mostly clean!
- Allow the brownies to fully cool before adding the frosting to prevent it from melting.
- Use high-quality cocoa powder for a richer chocolate flavor.
- To cut clean slices, use a warm knife and wipe between cuts.

Recipe Help
Just a hint of peppermint extract is all you need because the flavor is so pure that a little goes a long way. Start with about 1/4 teaspoon and then add more if you feel like you want it to have a more intense flavor!
Yep! Feel free to stir in your favorite nuts, like walnuts or pecans, for an added crunch. White chocolate chips, or sprinkles can also be added.
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*Did you make this recipe? Please give it a star rating and leave comments below!* Post a photo of how your version of the recipe came out on Instagram (using #grandbabycakes)!!
This post was originally published December 2016. It has been updated with new images and content.
Peppermint and chocolate are one of my favorite flavor combinations, especially during the Christmas season! These brownies are so rich and indulgent too. Thanks for sharing!
Oooh, you had me at one bowl! These peppermint brownies look absolutely fantastic, especially with the creamy peppermint frosting.
There is nothing better than chocolate and peppermint together. Thanks for a delicious brownie!