Decadent Frosted Coffee Brownies
These Frosted Coffee Brownies are a rich, fudgy dream with a delightful coffee kick that elevates them from simple dessert to an unforgettable experience. They're surprisingly easy and quick to whip up, making them perfect for unexpected guests, a last-minute potluck, or simply treating yourself.
Equipment
- 9x13 inch baking pan
- Large mixing bowl
- Medium-sized bowl
- Whisk
- Wire rack
Ingredients
For the Brownies
- 1 cup butter (2 sticks), melted
- 2 cups granulated sugar
- 4 large eggs
- 1 tsp vanilla extract
- 1 cup all-purpose flour
- 1/2 cup cocoa powder unsweetened recommended
- 1/2 tsp salt
- 1/2 tsp baking powder
- 1/2 cup brewed coffee cooled
For the Frosting
- 1 cup powdered sugar
- 1/4 cup unsalted butter (1/2 stick), softened
- 2 tbsp brewed coffee cooled
- 1 tsp vanilla extract
- 2 tbsp heavy cream optional
Instructions
- Step 1: Preheat your oven to 350°F (175°C). Prepare a 9x13-inch baking pan by greasing and flouring it, or lining it with parchment paper, leaving an overhang on the sides for easy lifting.
- Step 2: In a large mixing bowl, combine melted butter and granulated sugar. Stir well until combined. Add the eggs one at a time, mixing well after each addition. Finally, stir in the vanilla extract and the cooled brewed coffee.
- Step 3: In a separate, medium-sized bowl, whisk together the flour, cocoa powder, salt, and baking powder. Whisking ensures even distribution of ingredients.
- Step 4: Gradually fold the dry ingredients into the wet ingredients. Mix just until everything is combined; do not overmix. Pour the batter into your prepared pan, spreading it evenly.
- Step 5: Bake for about 25-30 minutes. The brownies are done when a toothpick inserted into the center comes out mostly clean, with a few moist crumbs clinging to it. Once baked, let them cool completely in the pan on a wire rack.
- Step 6: While your brownies are cooling, prepare the frosting. In a bowl, combine powdered sugar, softened butter, brewed coffee, and vanilla extract. Beat them together until you have a smooth, creamy frosting. If desired, add the heavy cream, a tablespoon at a time, until you reach your desired silky consistency.
- Step 7: Ensure your brownies are completely cool before you spread the delicious coffee frosting over the top. If they're even slightly warm, the frosting will melt.
- Step 8: Once frosted, slice your brownies into perfect squares and enjoy!
Notes
Substitutions & Additions: For extra chocolate, stir in 1/2 cup of chocolate chips (milk, dark, or white) into the brownie batter before baking. For a crunch, fold in 1/2 cup of chopped walnuts or pecans. For a more intense coffee flavor, add 1-2 teaspoons of instant espresso powder to the brownie dry ingredients, and 1/2-1 teaspoon to the frosting. A pinch of cinnamon or a tiny dash of cayenne pepper can add warmth and depth. For an adult treat, swap out a tablespoon of the brewed coffee in the frosting for coffee liqueur (like Kahlúa) or a splash of bourbon. You can also top these with a classic chocolate buttercream, a peanut butter frosting, or a simple vanilla glaze.
Tips for Success: Measure flour correctly by spooning it into the measuring cup and leveling it off with a knife to prevent dry brownies. Do not overmix the batter once dry ingredients are added; mix just until no streaks of flour remain to ensure fudgy brownies. Do not overbake; a toothpick should come out with moist crumbs. Cool completely before frosting for neat slices and perfectly set frosting; you can pop them in the fridge for 30 minutes if impatient. Use good quality coffee that you would enjoy drinking.
Storage: Store frosted brownies in an airtight container at room temperature for up to 3-4 days. Placing parchment paper directly on top of the frosting can prevent sticking to the lid. If your kitchen is warm, or to extend freshness, store them in an airtight container in the fridge for up to a week; let them come to room temperature for 15-20 minutes before serving. To freeze, wrap individual unfrosted (or lightly frosted) brownies tightly in plastic wrap, then place in a freezer-safe bag or container for up to 2-3 months. Thaw at room temperature or in the fridge.
FAQs: Yes, you can use instant coffee instead of brewed coffee. For the brownies, dissolve 1-2 tablespoons of instant coffee or espresso powder in 1/2 cup of hot water, then cool completely. For the frosting, dissolve 1 teaspoon of instant coffee in 2 tablespoons of hot water and let it cool. If your brownies came out dry, it's most likely due to over-measuring flour or overbaking; spoon and level your flour, and err on the side of slightly underbaked. Yes, these brownies are fantastic made a day in advance as the flavors often deepen overnight; store them in an airtight container at room temperature and frost when ready to serve or up to 24 hours beforehand.