Ingredients
Scale
- For the Brownies:
- 1 cup (2 sticks) unsalted butter, melted
- 2 cups granulated sugar
- 4 large eggs
- 1 teaspoon vanilla extract
- 1 cup all-purpose flour
- 3/4 cup unsweetened cocoa powder
- 1/2 teaspoon baking powder
- 1/2 teaspoon salt
- For the Mint Frosting:
- 1/2 cup (1 stick) unsalted butter, softened
- 2 cups powdered sugar, sifted
- 2 tablespoons milk (or cream)
- 1 teaspoon mint extract
- 2-3 drops green food coloring (optional)
- For the Chocolate Glaze (Optional):
- 1/2 cup semi-sweet chocolate chips
- 1 tablespoon unsalted butter
Instructions
- Preheat your oven to 350°F (175°C). Grease and flour a 9×13 inch baking pan, or line with parchment paper leaving an overhang on the sides for easy lifting.
- In a large bowl, whisk together the melted butter and granulated sugar until well combined and smooth.
- Beat in the eggs one at a time, ensuring each is fully incorporated before adding the next. Stir in the vanilla extract.
- In a separate bowl, whisk together the flour, cocoa powder, baking powder, and salt. Gradually add the dry ingredients to the wet ingredients, mixing until just combined. Be careful not to overmix; a few streaks of flour are fine.
- Pour the brownie batter into the prepared baking pan and spread evenly. Bake for 25-30 minutes, or until a toothpick inserted into the center comes out with moist crumbs, not wet batter.
- Remove brownies from the oven and let them cool completely in the pan on a wire rack before frosting. This is crucial for a clean frosting layer.
- While the brownies cool, prepare the mint frosting. In a medium bowl, beat the softened butter until light and fluffy. Gradually add the sifted powdered sugar, alternating with the milk, until smooth and creamy. Stir in the mint extract and green food coloring (if using) until evenly colored and combined.
- Once the brownies are completely cool, spread the mint frosting evenly over the top. Chill the brownies in the refrigerator for at least 30 minutes to set the frosting.
- If making the chocolate glaze: In a microwave-safe bowl, combine chocolate chips and butter. Microwave in 30-second intervals, stirring after each, until melted and smooth. Let cool slightly before drizzling over the chilled mint frosting.
- Cut into squares and serve. Store any leftover brownies in an airtight container at room temperature or in the refrigerator.
Notes
For extra fudgy brownies, slightly underbake them. Ensure your butter for the frosting is truly softened, not melted, for the best creamy texture. If you don’t have mint extract, you can use a small amount of peppermint extract, but be mindful of its stronger flavor. A sprinkle of flaky sea salt on top of the chocolate glaze enhances the flavor beautifully.
- Prep Time: 25 minutes
- Cook Time: 30 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American (Irish-inspired)
Nutrition
- Serving Size: 1 brownie square
- Calories: 380
- Sugar: 45g
- Sodium: 210mg
- Fat: 18g
- Saturated Fat: 11g
- Unsaturated Fat: 5g
- Trans Fat: 0g
- Carbohydrates: 55g
- Fiber: 3g
- Protein: 4g
- Cholesterol: 65mg