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These Bailey’s Brownies are an elevated box mix recipe with Irish Cream in the brownie mix and whipped ganache frosting.

I’m kind of the brownie Queen around here. So, are you surprised I would go and put alcohol in my brownies, I didn’t think so… welcome to my Bailey’s Brownies!
Chewy chocolate brownies, there is just nothing better.
Not until you add Bailey’s right in the mix along with whipped Bailey’s ganache topping and then drizzle them with melted dark chocolate.
This is where your adult chocolate fantasy comes to rest.
You know I had to do it to ya, Bailey’s Brownies, need I say more?
Some of our other favorite recipes with alcohol in the mix we have on our site include: Rumchata Poke Cake, Easy Tiramisu Recipe, and Bourbon Chicken.
WHY THIS RECIPE WORKS:
- Bailey’s Irish Cream in the brownies and the whipped ganache topping.
- Total crowd-pleasing recipe and made with a boxed mix to make it easy.
- It uses staple recipe ingredients you probably already have at home.
INGREDIENTS NEEDED (SCROLL TO THE BOTTOM OF THIS POST FOR THE FULL RECIPE CARD):
- Fudge brownie mix
- Baileys Irish Cream
- Vegetable oil
- Large eggs
- Semi-sweet chocolate chips
- Heavy cream
- Dark chocolate melting wafers, optional

Jump to:
- WHY THIS RECIPE WORKS:
- INGREDIENTS NEEDED (SCROLL TO THE BOTTOM OF THIS POST FOR THE FULL RECIPE CARD):
- HOW TO MAKE BaiLEY’S bROWNIES:
- FREQUENTLY ASKED QUESTIONS ABOUT THIS RECIPE:
- CAN YOU ADD BAILEY’S TO BROWNIE MIX?
- CAN I ADD ANYTHING?
- ARE THESE BROWNIES KID FRIENDLY?
- ANY SUBSTITUTIONS?
- HOW TO STORE:
- DANA’S TIPS AND TRICKS:
- Bailey’s Brownies with Irish Cream Ganache
HOW TO MAKE BaiLEY’S bROWNIES:
- Preheat the oven to 350°F. Line a 9×13 baking dish with parchment paper or spray with baking spray and set aside for best results.
- Place the fudge brownie mix, Irish cream, vegetable oil, and the eggs into a large bowl. Mix the ingredients per the directions on the back of the box.
- Smooth the brownie batter into the prepared pan.
- Bake for 22-25 minutes or until a toothpick inserted 2 inches from the side of the baking dish comes out mostly clean, a few crumbs are okay but if there is any wet batter, they need to be baked longer. Or bake per the directions on the back of the box, look for moist crumbs when doing the toothpick test. Let them cool completely in the baking dish.
- While the brownies are baking, make the ganache by placing the semi-sweet chocolate chips into a heat-proof medium bowl, and setting them aside.
- Place the Baileys and heavy cream into a small pot on the stove over medium-low heat, occasionally stirring until it just comes to a simmer. Pour the mixture over the chocolate chips and cover the bowl. Let it sit for 5 minutes.
- Whisk the ganache until smooth. Let the ganache sit at room temperature until it is firm. You can also place it in the fridge for about 1 hour until firm.
- Place the firm ganache into a large bowl with an electric hand mixer or the body of a stand mixer with the whisk attachment and whip until it becomes light and fluffy, about 3 minutes.
- Lift the brownies out of the baking dish with the parchment paper and spread the ganache evenly over the brownies.
- Cut the frosted brownies into servings, then drizzle with the optional melted dark chocolate and serve once the chocolate is set.

FREQUENTLY ASKED QUESTIONS ABOUT THIS RECIPE:
CAN YOU ADD BAILEY’S TO BROWNIE MIX?
Absolutely, you better believe you can add Bailey’s to your favorite brown mix.
We have done that for this recipe: replace the water called for in the brownie mix with Irish Cream!
This will work with any brownie mix, we just love the Fudge Brownie mix variety.
CAN I ADD ANYTHING?
Yes! I love to add mix-ins to the brownie base, here are some of my favorites:
- Sprinkle powdered sugar on top for a sweet, snowy look.
- Add a scoop of vanilla ice cream for a creamy treat with your fudgy brownies.
- Mix in espresso powder to the chocolate mixture for a bold coffee flavor.
- Drizzle extra melted dark chocolate over the irish cream ganache for more chocolate flavor.
- Spread a layer of irish cream buttercream frosting for a delightful adult dessert.
- Top with crushed nuts for a crunchy twist on these boozy brownies.
- Add a pinch of brown sugar to the batter for a deeper sweetness.
- Sprinkle chocolate chips on the tops of your brownies before baking for a fudgy texture.

ARE THESE BROWNIES KID FRIENDLY?
No, since there is Bailey’s in both the brownie mix and the ganache topping, I would not serve these to kids.
The chocolate ganache uses slightly warmed Bailey’s, and I know not all of the alcohol would evaporate from heating, so just be on the safe side and serve these only to adults.
ANY SUBSTITUTIONS?
YUP! You can decide what makes the perfect brownies.
Let me know how they turn out!
- Use a homemade brownie recipe instead of boxed brownie mix for a personal touch.
- Swap vegetable oil with melted unsalted butter in the wet ingredients for richer best brownies.
- Substitute baileys irish cream with irish cream liqueur or a flavored coffee creamer for a little different taste.
- Swap semi-sweet chocolate chips with dark chocolate chips in the chocolate baileys ganache for a bolder chocolate flavor.

HOW TO STORE:
These brownies will last at room temperature for up to 2 days.
Due to the ganache, they will need to be refrigerated after 2 days.
In the fridge, stored in an airtight container, they will be good for up to 5 days total.
These are best enjoyed at room temperature, so allow them to come up to room temp to enjoy any leftovers.
Freeze for up to 3 months.
Wrap leftovers in plastic wrap, then foil, and place in a freezer-safe container or bag.
To thaw, place in the fridge overnight or on the countertop until room temperature.
DANA’S TIPS AND TRICKS:
- This makes a large batch, but you can easily double it to feed more or halve the recipe as needed. If halving the recipe, add it to a 9×9 or 8×8 baking dish, and cook time may vary.
- Tons of custom options, see my tips above on that.
- Store-bought brownie mix is used for this recipe, but you can use your favorite homemade brownies instead.
- The dark chocolate drizzle is optional.
- This keep and freeze well, see my tips above on how to store.
- I do not recommend serving to anyone but adults of drinking age.
Looking for a fun, unexpected dessert to make for any adult gathering, especially St. Patrick’s Day?
These Bailey’s Brownies will be the hit of the dessert table!
If you like this recipe, you might also like:

If you’ve tried these BAILEY’S BROWNIES, let me know how it turned out in the comments! You can follow me over on PINTEREST, INSTAGRAM OR FACEBOOK to find some more of our mouthwatering recipes!
Bailey’s Brownies with Irish Cream Ganache
Ingredients
For the brownies:
- 1 box fudge brownie mix or your favorite brownie mix
- 3 tablespoons Bailey's Irish Cream
- 1/2 cup vegetable oil
- 2 large eggs
For the Bailey's ganache:
- 12 ounces semi-sweet chocolate chips
- 4 ounces Bailey's Irish Cream
- 2 ounces heavy cream
- 2 tablespoons melted dark chocolate melting wafers to serve, optional
Instructions
- Preheat the oven to 350°F. Line a 9×13 baking dish with parchment paper or spray with baking spray and set aside.
- Place the fudge brownie mix, Irish cream, vegetable oil, and the eggs into a large bowl. Mix the ingredients per the directions on the back of the box.1 box fudge brownie mix, 3 tablespoons Bailey's Irish Cream, 1/2 cup vegetable oil, 2 large eggs
- Smooth the brownie batter into the prepared baking dish.
- Bake for 22-25 minutes or until a toothpick inserted 2 inches from the side of the baking dish comes out mostly clean, a few crumbs are okay but if there is any wet batter, they need to be baked longer. Or bake per the directions on the back of the box. Let them cool completely in the baking dish.
- While the brownies are baking, make the ganache by placing the semi-sweet chocolate chips into a heat-proof bowl, and setting them aside.12 ounces semi-sweet chocolate chips
- Place the Baileys and heavy cream into a small pot on the stove over medium-low heat, occasionally stirring until it just comes to a simmer. Pour the mixture over the chocolate chips and cover the bowl. Let it sit for 5 minutes.4 ounces Bailey's Irish Cream, 2 ounces heavy cream
- Whisk the ganache until smooth. Let the ganache sit at room temperature until it is firm. You can also place it in the fridge for about 1 hour until firm.
- Place the firm ganache into a large bowl with an electric hand mixer or the body of a stand mixer with the whisk attachment and whip until it becomes light and fluffy, about 3 minutes.
- Lift the brownies out of the baking dish with the parchment paper and spread the ganache evenly over the brownies.
- Cut the frosted brownies into servings, then drizzle with the optional melted dark chocolate and serve once the chocolate is set.2 tablespoons melted dark chocolate melting wafers
Notes
- This makes a large batch, but you can easily double it to feed more or halve the recipe as needed. If halving the recipe, add it to a 9×9 or 8×8 baking dish, and cook time may vary.
- Tons of custom options, see my tips above on that.
- Store-bought brownie mix is used for this recipe, but you can use your favorite homemade brownies instead.
- The dark chocolate drizzle is optional.
- This keep and freeze well, see my tips above on how to store.
- I do not recommend serving to anyone but adults of drinking age.
Nutrition
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