For those who love wealthy chocolate desserts, these Guinness brownies are about to turn out to be your new favourite. They’re deeply fudgy, intensely chocolatey, and topped with a creamy Guinness-infused frosting. I promise you don’t have to love beer to like these St. Patrick’s Day-perfect brownies!

Earlier than you are concerned—these brownies don’t style like beer. As a substitute, Guinness stout enhances the chocolate taste with roasted, coffee-like notes and a touch of caramel sweetness. It’s the identical purpose stout is commonly paired with chocolate desserts, comparable to this Guinness chocolate cake. The flavors naturally complement one another.
These Guinness brownies are decadent and deeply chocolatey, however not overly candy. A chocolate dessert for a grownup palate!
- Texture: dense, moist, and fudgy
- Taste: darkish chocolate with roasted malt notes
- Frosting: creamy, with hints of espresso and caramel

Why You’ll Love These Guinness Brownies
These brownies stand out from typical chocolate brownies due to their deep, complicated taste and ultra-fudgy texture.
Right here’s what makes them particular:
- Advanced chocolate taste: Guinness stout intensifies the pure melted chocolate with its roasted, coffee-like notes.
- Extremely-fudgy texture: Shut in texture to my significantly fudgy do-it-yourself brownies.
- Creamy Guinness frosting: Mild, clean, and barely espresso-forward with refined malty caramel notes.
- A beautiful dessert recipe for St. Patrick’s Day… or anytime you’re craving a wealthy chocolate dessert!

What Does Guinness Add to Brownies?
Darkish, clean, and creamy, Guinness stout accommodates roasted barley, which contributes flavors much like roast espresso, cocoa, and caramel. Guinness is commonly utilized in baking and virtually at all times paired with chocolate. The 2 work effectively collectively as a result of Guinness, like espresso, intensifies chocolate’s pure taste.
- Have you ever ever had this chocolate cake with sizzling espresso within the batter earlier than? It’s identical to that.
Actually, you don’t have to love beer to like desserts made with Guinness! Desserts like my Guinness cupcakes don’t style like beer. Quite, they’ve a extra complicated chocolate taste with a malty background.
Lowering the beer first intensifies these flavors whereas stopping extra liquid within the batter. We take that very same first step on this recipe for Guinness chocolate cake. Extra on this under!
Different Components You Want
Apart from a bottle of Guinness, the remainder of the elements are all fairly typical brownie staples:
- Butter: You may make brownies with butter, oil, or each; however in testing, we favored these brownies greatest with all butter.
- Chocolate: Use 8 ounces (2 normal baking bars) of semi-sweet or bittersweet chocolate. Since that is the one chocolate in these Guinness brownies, use a good-quality model—I usually use Ghirardelli model.
- Sugar: Sugar does greater than sweeten brownies. Because the batter bakes, it liquifies to create a softer middle and rises to the highest, forming that shiny, crackly floor.
- Eggs: Eggs bind, add richness, tenderize, and supply construction. This recipe makes use of 3 eggs for a good crumb and melt-in-your-mouth texture.
- Flour: Extra flour makes cakier brownies. For dense, fudgy brownies, you solely want 1 cup.
- Salt & Vanilla: To stability all of the flavors.
- Espresso Powder: Non-compulsory, however I like to recommend it for a deeper chocolate taste. It’s added to each the brownie batter and frosting. Yow will discover espresso powder within the baking or espresso aisle on the grocery retailer or on-line.
- Confectioners’ Sugar: For sweetening the frosting.
Why is there no baking powder or baking soda in these brownies? Including baking powder or baking soda lifts brownies up and creates a cakier consequence. However in the present day, we wish a brownie so dense and fudgy that it’s mainly 1 step up from consuming pure chocolate—identical to these significantly fudgy do-it-yourself brownies.


The Key Step: Scale back the Guinness
The key to daring Guinness taste in your brownies with out ruining their texture is lowering the beer first. Simmering the beer concentrates its taste whereas stopping extra liquid within the batter, so the brownies keep dense, moist, and completely fudgy as an alternative of cakey.
By lowering a full bottle of Guinness on the stovetop, the water evaporates whereas the flavour intensifies. The consequence: malty stout taste with out compromising the brownie texture.
Right here’s the method:
- Pour one bottle (or can) of Guinness stout right into a saucepan.
- Let it simmer till it reduces to about 2/3 cup (takes about 20 minutes, completely arms off). That is lower than half the liquid we began with, however triple the flavour.
- Let it cool barely. Or cut back the Guinness upfront, and refrigerate till you’re able to make the brownies.
This system is much like lowering fruit or champagne for baking—much less liquid, extra taste. We do the identical factor to pay attention strawberry taste for strawberry cake, apple cider taste for apple cider donuts, and champagne for champagne cake roll.
We’ll use 1/2 cup (120g/ml) of diminished Guinness within the brownie batter, and the remaining 2 and 1/2 Tablespoons (40g/ml) within the frosting.

Find out how to Make the Greatest Guinness Brownies
When you’ve diminished the Guinness, the batter comes collectively rapidly.
Soften the butter and chocolate collectively to create a clean base for these dense, fudgy brownies. It helps to chop the butter into items so it melts evenly. You should use the microwave or stovetop. Whisk within the sugar and the diminished Guinness, then the eggs and vanilla, and at last the dry elements. The batter can be thick and glossy.
Unfold it right into a lined 9-inch sq. steel baking pan (not glass or ceramic) so the brownies bake evenly.
Guinness Frosting
The brownies are implausible on their very own, however their decadent nature begs for one thing creamy. When you may get pleasure from a creamy pint of Guinness alongside these brownies, I favor topping them with this Guinness frosting as an alternative!
It’s creamy, calmly candy, and flavored with extra of the diminished Guinness, espresso powder, and vanilla.
The flavour is tough to explain however fully scrumptious—espresso-like with refined malty, caramelized notes from the stout.


These Guinness brownies would even be implausible topped with vanilla ice cream, do-it-yourself whipped cream, or the mocha whipped cream from my flourless chocolate cake recipe.
No. Guinness brownies don’t style strongly like beer. As a substitute, the stout enhances the chocolate taste with refined roasted notes much like espresso or darkish caramel. The result’s a richer, deeper chocolate brownie slightly than a beer-flavored dessert.
Traditional Guinness Draught stout works greatest for baking brownies. It has a clean, barely roasted taste that enhances chocolate. Further stout or different darkish stouts can even work, however they could produce a barely stronger malt taste.
No. Lowering Guinness concentrates its taste whereas eradicating extra liquid. Brownie batter can simply turn out to be too skinny if additional liquid is added, which might result in cakey or gummy brownies. Simmering the stout first ensures the brownies keep dense, moist, and fudgy.
Sure. Though the brownies comprise Guinness, the alcohol content material is diminished throughout simmering and baking. For those who favor an alcohol-free model, you possibly can substitute a stout-style nonalcoholic beer for the same taste.
Brownies are achieved when a toothpick inserted within the middle comes out with just a few moist crumbs—not coated in moist batter (underbaked), and never fully clear (overbaked). Overbaking could make brownies dry, so it’s greatest to take away them from the oven when the middle is simply set.
Description
These Guinness brownies are made out of diminished Guinness Stout. They’re fudgy, wealthy, and topped with espresso- and Guinness-infused frosting!
- In a small saucepan, convey the Guinness to a boil over medium-high warmth. As soon as boiling, cut back to medium warmth and permit to simmer till diminished all the way down to 2/3 cup (160g/ml), about 12–quarter-hour. Put aside to chill for a minimum of 10 minutes. You’ll use 1/2 cup (120g/ml) within the brownies and the remaining within the frosting.
- Preheat the oven to 350°F (177°C) and grease a 9-inch sq. baking pan or line with aluminum foil or parchment paper, leaving an overhang on the edges to raise the completed brownies out (makes slicing simpler!). Put aside.
- Place the butter and chopped chocolate in a big microwave-safe bowl. Soften in 30-second increments, whisking after every, till fully clean. Whisk within the sugar and 1/2 cup (120g/ml) of diminished Guinness till fully mixed. Whisk within the eggs and vanilla extract. Lastly, whisk within the flour, salt, and espresso powder (if utilizing). The batter can be thick and glossy. Pour/unfold evenly into ready pan.
- Bake for 32 minutes, then take a look at the brownies with a toothpick. Insert it into the middle of the pan. If it comes out coated with moist batter, the brownies want extra time. If there are only some moist crumbs, the brownies are achieved. Maintain checking each 2 minutes till you have got moist crumbs. My brownies take about 35 minutes.
- Take away from the oven and place on a cooling rack to chill fully within the pan earlier than frosting or slicing.
- Make the frosting: In a big bowl utilizing a handheld or stand mixer fitted with a whisk attachment, beat the butter on excessive velocity till fully clean and creamy, about 2–3 minutes. Add the confectioners’ sugar, beating on low at first then rising to excessive velocity. As soon as creamy and mixed, beat in 2 Tablespoons of diminished Guinness, the espresso powder, vanilla extract, and salt. Style. Add the remaining diminished Guinness if wanted. If you need the frosting a bit of thinner, beat in a splash of milk.
- When cool, raise the brownies out by gripping the parchment overhangs and switch to a slicing board. Unfold frosting over cooled brownies. Use a pointy knife to chop into squares.
- Cowl and retailer leftover brownies at room temperature for as much as 1 week.
Notes
- Make Forward Directions: Freeze frosted or unfrosted brownies as much as 3 months. Thaw in a single day within the fridge then convey to room temperature earlier than serving.
- Particular Instruments (affiliate hyperlinks): Electrical Mixer (Handheld or Stand) | Glass Mixing Bowls | Whisk | Saucepan | 9-inch Sq. Baking Pan | Icing Spatula
- Chocolate: Yow will discover 4 ounce chocolate baking bars within the baking aisle. I like utilizing Ghirardelli model or Baker’s model. You should use 8 ounces (heaping 1 and 1/3 cups) of high quality chocolate chips as an alternative, comparable to Ghirardelli model.

