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Fudgy Stout Beer Brownies

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Rich and chocolaty, these fudgy stout beer brownies are different than typical cake-like beer brownies! The stout is cooked down and is used for flavor, so you can serve these decadent brownies anytime.

fudgy stout beer brownies cut and ready to serve on a piece of parchment paper. There's a stout beer and a dark napkin in the background

Raise your hand if you’re a fudgy brownie person over a cake brownie person. Mine was up. We can put them down now. This beer brownie recipe is for us.

I find that so many beer brownies have a cake texture, which makes sense. Beer is great to use in baking, and because of its characteristics, it adds lightness and flavor to lots of recipes.

We are no stranger to cooking with beer here! Just check out my recipe for a chocolate caramel pretzel beer cake, famous Guinness cupcakes, no-yeast beer bread, coffee stout beer cookies, and even beer waffles! I bake with beer.

But do you notice what isn’t on that list? Brownies. It’s not that I hadn’t baked them, the texture just wasn’t my favorite. The results were more like chocolate cake than brownie.

This year though, I finally cracked the code! The resulting fudgy stout beer brownies are dense, rich, and unapologetically chocolate! The beer flavor shines through just enough to balance everything.

I know they’re good because both the Godfather and the kids gave me a hard pass on sharing the brownies. Instead, the family ate the entire pan over the course of a little under a week.

Since the brownies contain beer, do they contain alcohol?

Not at all. You see, alcohol evaporates very quickly when exposed to heat. We take a 16-ounce can of beer and simmer it until it reduces to a half cup.

uncut beer brownies removed from the pan. You can see the set edges and the crackly top flecked with salt

At this point, every tiny bit of alcohol and most of the water has evaporated! So in theory, once your beer has been reduced, you could drink the entire thing in a gulp and it would be like a very strange flat soda.

Please don’t though. It’s a terrible idea and you should save the reduced beer for your brownies.

What kind of beer should I use?

For this recipe, you’ll want to use a stout beer. Stout beers, regardless of brand, have natural coffee undertones thanks to the malt. This is why stouts are so popular for baking. The flavor profile compliments chocolate perfectly!

Around Saint Patrick’s day, use Guinness to make fudgy Guinness brownies. Many breweries also have seasonal varieties like chocolate cherry stouts, coffee stouts, gingerbread stouts, or the macchiato stout I used for the brownies for the shoot.

overhead view of the fudgy stout beer brownies, part of the square is cut, there are scattered chocolate chips around the brownies

Since this brownie recipe has been a long time work in progress, I’ve tested using a variety of stout beers. As a general rule, if it’s something you’d drink, it’s also good for cooking.

If you don’t have a stout, you can substitute with a porter, but the beer flavor will be lighter as porters aren’t as robust. This article by The Kitchn has a good comparison of the two if you’d like more detail.

A few fudgy stout beer brownie recipe notes…

Unlike most of my other brownie recipes, these take a little more time. The extra time is because of the beer.

It takes approximately 20-25 minutes of simmering to reduce 2 cups of beer to a 1/2 cup. Then, you have to let it cool for about another 15-20 minutes so you don’t accidentally scramble the eggs in the batter. It doesn’t have to be totally cool, slightly warm is okay.

SO, if you don’t plan to be in the kitchen doing other things while all this is happening, you can reduce the beer in advance. I’m often interrupted while baking, so have done this many times.

Refrigerate the reduced beer and come back to it later when you’re ready to mix up your brownies, up to 2 days. If you can, let it sit out for a few minutes until it’s closer to room temperature. As with most baked goods, ingredients close to room temperature provide the best results.

To really amp up the chocolate flavor in these brownies, we use a ganache in the batter. You can make this ganache after reducing your beer, while it’s cooling. In fact, by the time the ganache is cool enough, the reduced beer should be good too.

stack of 4 beer brownies to highlight the texture and crumb.

The butter and chocolate ganache will seem very liquid, but that’s expected. Just make sure that all the chocolate has completely melted. You can use baking chocolate or chocolate chips. I’ve used both and whatever you have on hand works. It does take a little longer for the chocolate chips to melt than chopped baking chocolate.

After baking, wait at least 30 minutes to cut into the brownies. This will be challenging because the house will smell AMAZING! But if you’ve ever made fudgy brownies before, you know a little patience pays off. You need to give the brownies enough time to set so you can cut them into clean squares.

Finally, I recommend adding a sprinkle of coarse salt to the brownies. The coarse salt balances the sweetness. I also think it highlights the flavor notes from the beer.

After cutting the brownies, you can store them in an airtight container at room temperature up to 4-5 days, in the refrigerator for a week. For longer storage, wrap them individually in plastic and place in an airtight container in the freezer for up to 3 months.

close up of a brownie with a "pretend bite" removed with a smooth cookie cutter to show the rich texture

I hope you love this fudgy stout beer brownie recipe, darlings! Happy baking!

Fudgy Stout Beer Brownies

Fudgy Stout Beer Brownies

Yield: 16 2-inch square brownies
Prep Time: 1 hour
Cook Time: 30 minutes
Total Time: 1 hour 30 minutes

Rich and chocolaty, these fudgy stout beer brownies are different than typical cake-like beer brownies! The stout is cooked down and is used for flavor, so you can serve these decadent brownies anytime.


  • 1 16-ounce can stout beer
  • 4 ounces bittersweet or semisweet chocolate
  • 8 tablespoons unsalted butter
  • 2/3 cup packed brown sugar
  • 1/2 cup granulated sugar
  • 2 large eggs
  • 3 tablespoons oil (a neutral-flavored oil works best)
  • 1/4 cup unsweetened cocoa powder
  • 1/2 teaspoon kosher salt
  • 2 teaspoons vanilla extract
  • 1 1/4 cups all-purpose flour

Optional Topping

  • 1 teaspoon coarse salt (see notes)
  • 1-2 tablespoons chocolate chips


  1. Place the beer in a small saucepan over medium heat. Bring to a simmer and allow to cook for 20-25 minutes until the beer has reduced to a 1/2 cup in volume. Set aside to cool for at least 15 minutes.
  2. In a double boiler, or using the microwave (see notes), melt together the 4 ounces of chocolate and the unsalted butter until smooth. Remove from the heat and set aside until close to room temperature, but still easy to stir.
  3. Preheat the oven to 350 F. Grease an 8x8-inch square baking dish and line with parchment paper. Set aside.
  4. In a larger mixing bowl or the bowl of a stand mixer fitted with the paddle attachment, combine the sugars.
  5. Beat in the eggs, one at a time, then the oil. Scrape the sides of the bowl.
  6. Stir in the kosher salt, cocoa powder, and vanilla.
  7. Pour in the cooled beer reduction, stirring constantly (especially if it's still a little warm), and the chocolate ganache mixture.
  8. Add the flour in 2 batches, stirring until just combined. Scrape the sides of the bowl as needed.
  9. Pour the batter into your prepared baking dish and top with the chocolate chips and coarse salt (if using).
  10. Bake the brownies for 30 minutes until the sides look done and a tester inserted in the center comes out mostly clean (a few moist crumbs are fine!).
  11. Allow the brownies to cool on a rack at least 2 hours before cutting.
  12. Enjoy!
  13. Leftover brownies can be stored in an airtight container at room temperature for 4-5 days, in the refrigerator up to a week, or wrapped individually and frozen in an airtight container for up to 2 months.


  • For the coarse salt, be sure to use a finishing salt and not a cooking salt. Fleur de sel, Maldon sea salt, grey finishing salt, etc, all work. If you don't have any of these, skip this step because fine sea salt and kosher salt don't provide the right flavor. The brownies will still taste fabulous! This is just an option.
  • To melt the chocolate and butter in the microwave, cut the butter into tablespoons and place in a microwave-safe bowl with your chopped chocolate. Microwave for 1 minute at 50% power, then stir. Add additional 20-second intervals as needed (all at 50% power), until the chocolate and butter mixture is smooth. Stir after each interval to help with heat distribution and prevent burning.
  • If you want to cool your ganache a little faster... When I'm being impatient, I speed up the cooling of the ganache by whisking in the cocoa powder. The heat not only helps activate the cocoa powder so it releases a little more flavor, stirring in the powder helps move the chocolate and butter mixture around so it cools just a little faster. Remember, it doesn't have to be totally cool, just cool enough that it won't scramble the eggs in the batter.

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