Guinness Brownies with Brownie Mix

Guinness Brownies with brownie mix are a decadent, boozy dessert idea to make for any type of celebration!

With just 4 ingredients, these moist beer brownies have a hint of creamy, dark stout flavor to your chocolate brownie batter!

With St. Patrick’s Day just a few weeks away, it’s the best time to try out this fudgy treat from a box brownie mix.

You know I love alcohol-infused cupcakes and these brownies are another fun spiked treat idea to try!

Some links in this post may be affiliate links. As an Amazon Associate in the Amazon Services LLC Associates Program, I earn from qualifying purchases by linking to Amazon.com and affiliated sites. I also participate in affiliate programs for other retailers. Originally posted February 18, 2019. Updated to include better instructions!

Boozy brownies are delish

I’m not a scratch baker. I much prefer starting with a box mix and here’s why: Someone, well probably a whole lot of people, has spent tons of time on the recipe to make sure it tastes great every single time.

So why reinvent the wheel?

If you haven’t tried alcohol-infused brownies, like these stout brownies from a box, you are totally missing out.

You know how there are certain flavors that really bring out that fudgy chocolate flavor in baked goods? Guinness Beer is one of those enhancers.

How to make Guinness Brownies with brownie mix

You can make these from scratch if you want but that would be dumb. If you need to feel fancy and be show-offy, go ahead I guess. But just by adding stout beer to regular brownies is a pretty bold move.

Ingredients

• 1 Box of Brownie Mix (and any ingredients the mix calls for except for water)
• 1/4 cup Guinness beer
• 2 eggs
• 1/2 cup oil

For these delicious beer brownies, you use stout beer instead of water. In my case, my brownie mix called for 1/4 cup of water, so I used 1/4 cup of Guinness instead.

If you live near a Whole Foods, you can get Guinness delivered in an hour (for a small fee) or in two hours for free! It’s amazing! Or pick it up from your local grocery store.

While you’re planning your grocery list, you’ll also want to pick up what you need to make this Beer Whipped Cream. It’s the perfect topping to these brownies! And tons of other desserts too.

Instructions

• In a large batter bowl, add the brownie mix, oil, eggs and stout beer. 
• Mix well, following the directions on the back of your brownie mix (some can be mixed by hand, others call for a mixer).
• Pour your spiked batter into a greased 8 x 8 baking dish.
• Bake in a 350-degree oven for about 25 minutes.
• Cool before cutting.

My stout brownies took way longer to bake than the 25 minutes that the box stated. Check them when the timer goes off and reassess on how well-done you like your brownies.

Yum! Let’s just ignore that my baking dish has baked-on oil that I tried to scrub off and finally just gave up on even though I knew it would show in photos.

Is it starting to make sense about why I don’t make things from scratch? (Lazy). 

Because the beer brownies had so little beer, and because they were baked, I let me kids try them. I make alcohol-infused cupcakes all the time and feel fine about the small amount of alcohol that is in them.

Top tips

• A milk chocolate brownie mix really lets the stout flavor shine but any boxed mix will work.

• Baking with beer is pretty easy. It’s best to have your Guinness be at room temperature. And pour it out of the can or bottle and into a glass to sit for a minute before adding it to your recipe.

• To amp up that yummy Guinness flavor, even more, I serve these beer brownies with stout infused whipped cream!

• Want to jazz up the presentation a little bit? Check out my Tiered Brownie Cake idea! It’s so simple and is a great way to serve brownies for a special occasion.

Maybe you don’t think beer-flavored whipped cream would taste good. But trust me. Give it a try! It’s SO good!

I didn’t let my kids have any of the beer whipped cream though. More for me! And they definitely aren’t getting any of my next Stout Beef Float.

Guinness Brownies with brownie mix are rich and delicious and would be perfect to serve your favorite beer lover.

I also think these yummy chocolatey treats would be great for St. Patrick’s Day. The fact that they aren’t green is really just a bonus. Why does everything have to be green?! 

And, of course, these would be a great idea for game day parties don’t you think? 

I’ll probably make these when my oldest son turns 21. OMG. He’s not even driving yet. I don’t want to think about any of that. Hold me.

I used to love a good Black and Tan! But I think it’s been about 20 years since I’ve had one.

Guinness is such a dark beer that it sort of makes me feel like I am drinking teriyaki sauce a little. But it’s great in desserts. And especially Irish beef stew! 

Even if you aren’t a beer lover you need to give this Guinness brownie recipe a try! The stout beer adds a yummy, malty flavor to the brownies.

Beer brings out the chocolate and makes the flavor creamy and wonderful. Which is why it works really well in a recipe like Beer and Chili Chocolate Ice Cream!

But like, a brownie can’t be anything but delicious, right? Don’t be afraid of a brownie made with beer! 

Starting with a box mix is a great way to jump-start a delicious dessert! Here are a few other easy dessert recipes you’ll probably like:

• Dump Cake Recipes – All of my Dump Cake Recipes use boxed mix to create a delicious cake batter-tasting crust on top of the canned pie filling! The result is sweet and delicious even though the dessert is so quick and easy to make.
• Chocolate Cake Mix Cookies – My son skipped a birthday cake this year in favor of these rich Chocolate Cake Mix Cookies! The flavor is pure chocolate and they are fluffy with a bit of crunch from the M&Ms candies.
• Sangria Cupcakes – Another alcohol-infused treat starting from a box mix are these easy Sangria Cupcakes. They have a delicious citrus flavor and are infused with white wine! It’s a fun idea to serve for girl’s night parties.

Printable recipe

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Yield: 9 servings

Guinness Brownies with Brownie Mix

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Guinness Brownies with brownie mix are a decadent, boozy dessert idea to make for any type of celebration! With just 4 ingredients, these moist beer brownies have a hint of creamy, dark stout flavor to your chocolate brownie batter!

Prep Time 10 minutes

Cook Time 25 minutes

Total Time 35 minutes

Ingredients

• 1 Box of Brownie Mix (+ whatever other ingredients the mix calls for -my particular ingredients are listed below)
• 1/4 cup Guinness Stout Beer
• 2 eggs
• 1/2 cup oil

Instructions

Steps for making delicious Beer Brownies

1. In a large batter bowl, add the brownie mix from a box, oil, eggs and Guinness beer.
2. Mix well, following the directions on the back of your brownie mix.
3. Pour beer brownie batter into a greased 8 x 8 baking dish.
4. Bake in a 350-degree oven for about 25 minutes.
5. Cool before cutting.

Notes

A milk chocolate brownie mix lets the Guinness flavor come through a little bit more than dark chocolate.

Pour your Guinness or other stout beer into a glass and let come to room temperature before baking with it.

Serve these beer brownies with beer-infused whipped cream!

Nutrition Information

Yield

9

Serving Size

8 Servings
Amount Per Serving Calories 306Total Fat 26gSaturated Fat 8gTrans Fat 0gUnsaturated Fat 17gCholesterol 80mgSodium 38mgCarbohydrates 12gFiber 0gSugar 8gProtein 3g

Nutrition information isn't always accurate.

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Pick up some Guinness and try these Beer Brownies with box mix this weekend! You won’t be disappointed.

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