Do Guinness Brownies contain alcohol after baking?

Most of the alcohol content in the Guinness reduces during the boiling process and bakes off in the oven. What’s left behind is flavor, not alcohol. These brownies are safe for most audiences, but if you’re concerned, allow the beer to reduce thoroughly before using it.

Can I make Guinness Brownies without espresso powder?

Yes, you can omit the espresso powder if you don’t have it on hand. However, it enhances the chocolate flavor significantly without making the brownies taste like coffee. For a similar effect, you could substitute with instant coffee granules or dark cocoa powder.

Why should I reduce the Guinness before adding it to the batter?

Reducing the Guinness concentrates its flavor and removes excess water. This step ensures your brownies stay fudgy, not soggy, while still delivering that rich, roasted stout note that enhances the chocolate.

How do I keep my brownies moist and chewy?

Avoid overbaking — this is key. Check for doneness by inserting a toothpick and ensuring a few moist crumbs cling to it. Store cooled brownies in an airtight container at room temperature or wrap tightly before refrigerating or freezing to retain moisture.

Guinness Brownies – Best Fudgy Recipe (No Frosting Needed)

Name: Guinness Brownies
Prep time: 10 min
Cook time: 55 min
Total time: 1 h 5 min
Cuisine: American
Ingredients: 1 (12 oz) bottle Guinness Extra Stout; 1/2 cup unsalted butter; 1 cup semi-sweet chocolate chips, divided; 1 cup granulated sugar; 1 teaspoon vanilla extract; 1 teaspoon instant espresso powder; 2 large eggs; 1/2 cup all-purpose flour; 1/4 cup unsweetened cocoa powder; 1/2 teaspoon baking powder; 1/4 teaspoon salt

Description

These Guinness Brownies are rich, fudgy, and deeply chocolaty with a grown-up twist thanks to reduced Guinness stout. They’re perfect for any occasion, not just St. Patrick’s Day, and deliver an indulgent dessert experience without overwhelming sweetness.

Ingredients

Scale

1 (12 oz) bottle Guinness Extra Stout
1/2 cup unsalted butter
1 cup semi-sweet chocolate chips, divided
1 cup granulated sugar
1 teaspoon vanilla extract
1 teaspoon instant espresso powder
2 large eggs
1/2 cup all-purpose flour
1/4 cup unsweetened cocoa powder
1/2 teaspoon baking powder
1/4 teaspoon salt

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Instructions

In a small saucepan, bring the Guinness to a boil over medium-high heat. Reduce to medium and simmer until reduced to 1/2 cup, about 20 minutes. Set aside to cool for at least 10 minutes.
Preheat oven to 350°F (175°C). Line an 8×8 inch baking pan with parchment paper and butter the sides.
In a microwave-safe bowl, melt butter with 3/4 cup of the chocolate chips in 30-second intervals, stirring until smooth.
Stir in the sugar, 1/2 cup reduced Guinness, vanilla extract, and espresso powder.
In a separate bowl, whisk the eggs until bubbly on top, about 1 minute. Add eggs to the chocolate mixture and stir until combined.
Sift together the flour, cocoa powder, baking powder, and salt in another bowl. Add dry ingredients to the wet ingredients and mix until just combined.
Fold in the remaining 1/4 cup chocolate chips.
Spread the batter evenly in the prepared pan and bake for 35–40 minutes, or until a toothpick inserted comes out with a few moist crumbs.
Let cool completely before slicing into squares.

Notes

Use high-quality chocolate for the best flavor.
Do not overmix the batter to keep brownies fudgy.
Cool completely before slicing for clean edges.
Store in an airtight container at room temperature for 2–3 days, or refrigerate up to a week.
Can be frozen for up to 3 months.

Prep Time: 10 minutes
Cook Time: 55 minutes
Category: Dessert
Method: Baking
Cuisine: American

Nutrition

Serving Size: 1 brownie
Calories: 353 kcal
Sugar: 37g
Sodium: 117mg
Fat: 18g
Saturated Fat: 11g
Unsaturated Fat: 3g
Trans Fat: 0g
Carbohydrates: 46g
Fiber: 3g
Protein: 4g
Cholesterol: 77mg