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Shortcut Boozy Kahlua Brownies (Boxed Brownie Hack!)

Shortcut boozy Kahlua brownies turn box brownies into an extra delicious treat. This is one of the best boxed brownie hacks out there and will turn any mix into an over the top treat.

Shortcut Boozy Kahlua Brownies
Shortcut Boozy Kahlua Brownies
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Mmmmm. Brownies.

Oh how I love delicious chocolatey, gooey brownies.

Is there a better dessert especially when they are Kahlua brownies?

I might be biased.

Kahlua is one of those throwback things for me that takes me back to the one summer that my newly 21 year old self actually ordered drinks out.

I’d get something fruity and girly- big surprise I know.

My husband would always get a mudslide or some other Kahlua drink.

And I’d always steal lots of sips of it.

Because Kahlua and chocolate are a match made in heaven as these delicious brownies more than prove!

We’re talking rich chocolately brownies topped with Kahlua icing.

OMG delish.

Ingredients and Kitchen Supplies

Shortcut Boozy Kahlua Brownies
Shortcut Boozy Kahlua Brownies

To make these Kahlua brownies you’ll need:

  • Brownie mix– Use your favorite brand in an 18-20 ounce box. I do recommend avoiding mixes that have additional chocolate syrup for this recipe because they may make the brownies not set properly.
  • Butter– Yes, I know the box calls for oil, but adding melted butter to brownies is a flavor thing. Trust me and try melting unsalted butter and using it instead. You’ll never go back!
  • Kahlua– Just a little bit. It adds a nice background flavor to the chocolatey brownies.
  • Chocolate chips– Go for semisweet or milk chocolate here.
  • Egg
  • Coffee– A little brewed coffee helps enhance the chocolate flavor.

For the Kahlua icing, you’ll need:

  • Butter– Unsalted butter softened to room temperature
  • Kahlua– Obviously
  • Vanilla extract
  • Powdered sugar– Don’t use granulated sugar
  • Chocolate chips– For topping

Kitchen supplies you’ll need include:

  • mixing bowl
  • measuring cups and spoons
  • hand mixer
  • baking dish

How to Make Kahlua Brownies from Box Mix

Shortcut Boozy Kahlua Brownies
Shortcut Boozy Kahlua Brownies

1. Make the Kahlua brownie batter.

In a large mixing bowl, beat together mix together the melted butter, egg, Kahlua and coffee.

Stir in the brownie mix until combined.

Fold in chocolate chips.

2. Bake the brownies.

Pour the brownie batter into an 8×8″ glass baking dish sprayed with nonstick spray and bake in an oven that you’ve preheated to 325 for 40-45 minutes.

The brownies will appear slightly underdone but cool to doneness.

3. Make the Kahlua icing.

When the brownies are completely cool, use a hand mixer to beat together 3 tablespoons of room temperature butter, 1/3 cup of Kahlua, and 3 teaspoons of vanilla.

When the wet ingredients are combined, turn mixer off and add powdered sugar.

Mix on low until combined.

Spread over the cooled brownies and top with extra chocolate chips.

Cut into squares and enjoy.

It’s the stuff of dreams, I tell you.

Storing

Shortcut Boozy Kahlua Brownies
Shortcut Boozy Kahlua Brownies

Store any leftover brownies tightly covered in the fridge for up to a week.

You do want to refrigerate these because of the icing.

FAQs

Shortcut Boozy Kahlua Brownies
Shortcut Boozy Kahlua Brownies

Can I use alcohol instead of water in brownie mix?

Why, I am so glad you asked!
Yes you can and we do in these Kahlua brownies.
What a way to add flavor!
Do keep in mind that not all the alcohol will cook off which can play a role in cook time and also why I recommend not using a mix that has you adding extra chocolate syrup.

Why are we adding coffee to the brownie batter? What does it do?

A teaspoon of brewed coffee enhances the chocolate flavor of the brownies. It will NOT make the brownies taste like coffee.

Tips and Tricks to Jazz Up Box Brownie Mix

Shortcut Boozy Kahlua Brownies
Shortcut Boozy Kahlua Brownies
  • Add alcohol instead of water! Like in these Kahlua brownies, alcohol adds a ton of flavor to brownie mix that taked boxed brownie mix to a whole new level of luscious.
  • Substitute butter for oil. Again we do that in this recipe, but butter’s higher fat content will give you richer, more decadent brownies. Plus it adds a buttery background/
  • The teaspoon of coffee. Look, I know you aren’t looking for coffee flavor brownies and adding such a small amount will not make your brownies taste like coffee. Adding coffee to chocolate desserts is similar to adding a little salt to cookies. The coffee compliments the chocolate and brings out its flavor.
  • Extra chocolate. I like to stir in extra chocolate chips so you get little pockets of pure chocolate in the brownies.
  • Icing. This is a personal opinion but I am one hundred percent #teamicing. It adds moisture and flavor. Don’t want to add icing but want some extra moisture and flavor? Drizzle a little vanilla simple syrup over the top of your baked brownies.
  • Decorate them! Not relevant for this recipe but I love to bake up a box of brownie mix and decorate them for Halloween (see also Pumpkin Patch Brownies and Graveyard Brownies) and other occasions!

Other Store Bought Dessert Hacks

Other Boozy Desserts

Looking for other boozy desserts to try? These are a few of my favorites:

Did you make this? Let me know!

Did you make this Kahlua brownie recipe or any other recipe on my site? Leave me a comment below and let me know how you liked it.

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Shortcut Boozy Kahlua Brownies

Shortcut Boozy Kahlua Brownies

Shortcut boozy Kahlua brownies turn box brownies into an extra delicious treat. This is one of the best boxed brownie hacks out there and will turn any mix into an over the top treat.
Prep Time: 10 minutes
Cook Time: 45 minutes
Cooling time: 1 hour
Total Time: 55 minutes
Course: Dessert
Cuisine: American
Keyword: kahlua brownies
Servings: 9 brownies
Calories: 454kcal
Author: jfletcher

Ingredients

For the brownies

  • 1 18-20 ounce box of brownie mix
  • 6 tablespoons of melted butter unsalted
  • 1/4 cup Kahlua
  • 1/2 cup chocolate chips semi sweet or milk
  • 1 egg
  • 1 teaspoon of brewed coffee

For the icing

  • 3 tablespoons butter room temperature
  • 1/3 cup of Kahlua
  • 3 tsp vanilla
  • 3 1/2 cups powdered sugar
  • 1/2 cup of chocolate chips

Instructions

Making the Brownies

  • Preheat the oven to 325.
  • Spray an 8×8 glass baking dish with nonstick spray.
  • While the oven is preheating, mix together the melted butter, egg, Kahlua and coffee.
  • Stir in the brownie mix and stir until combined.
  • Fold in chocolate chips.
  • Pour into the glass baking dish and bake for 40-45 minutes at 325. The brownies will appear slightly underdone but cool to doneness.
  • Let the brownies cool thoroughly.

For the Icing

  • When the brownies are cool, mix together with a hand mixer 3 tablespoons room temperature butter, 1/3 cup of Kahlua, and 3 tsp vanilla in a large bowl.
  • When the wet ingredients are combined, turn mixer off and add powdered sugar. Then mix on low speed until combined.
  • Spread over the cooled brownies and top with extra chocolate chips.
  • Cut into squares and enjoy.

Notes

See post for notes

Nutrition

Serving: 1brownie | Calories: 454kcal | Carbohydrates: 66g | Protein: 1g | Fat: 19g | Saturated Fat: 11g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 0.5g | Cholesterol: 49mg | Sodium: 101mg | Potassium: 98mg | Fiber: 1g | Sugar: 62g | Vitamin A: 381IU | Calcium: 20mg | Iron: 1mg
Tried this recipe?Let us know how it was!

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  1. Christina Parker says:

    These look amazing! What size brownie mix did you use?

    • jfletcher says:

      Thank you! I used an 18 ounce box- but any that are approximately that size (Betty Crocker has mix that is 17.4 ounces) will work.

  2. Kimberly Cox says:

    This looks amazing!!! I have 3 & 4 year old, there are days I could use a Kahlua brownie at 7:30 in the AM 🙂 Thanks for sharing <3

  3. Kimberly @ Berly's Kitchen says:

    These are my kind of brownies!! Seriously, who doesn’t love (or need) a little Kahlua in their lives every now and then. Great job on these. We’ll be giving these a try sometime soon. 🙂

  4. Sharon says:

    OMG Yes!!!! You cannot beat the combo of Kahlua and chocolate together. And it looks so heavenly dripping over the brownies. YUM!

  5. Mira says:

    That frosting drizzle looks so good. All the heart eyes!

  6. Kate says:

    Wow, these look amazing. Coffee and chocolate is always such a winning flavor combination! Mmm!

  7. Oh! I might be drooling. These brownies look divine.

  8. Angela Fry says:

    Wow! These look amazing. I’m totally going to have to try them now.

  9. Michelle says:

    ummmmm….these sound and look so good. Adding coffee and butter to the mix and kahlua to the icing. Get in my belly!

  10. Erica says:

    I’m not a big drinker…I much prefer coffee. Coffee is totally my addiction. So of course I love Kahlua. I’ve never tried it in brownies, but I can’t imagine it is anything but amazing!

    • jfletcher says:

      I’m not a big drinker either and I’m with you coffee is totally my jam. But I do love dessert liquors like Kahlua and Bailey’s.

  11. kate says:

    These look fantastic

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