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Frosted coffee brownies on a plate, showcasing dense chocolate layers topped with creamy coffee frosting, with a cup of coffee in the background.

Frosted Coffee Brownies

Rich, Frosted Coffee Brownies infused with espresso and topped with silky coffee buttercream. The coffee enhances the chocolate flavor, making these brownies irresistibly deep and indulgent — perfect for coffee and chocolate lovers alike.
5 from 1 vote
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Course: Dessert, Snack
Cuisine: American, Coffeehouse-style
Keyword: Brownies with mocha frosting, Coffee brownies recipe, Frosted coffee brownies from scratch, Frosted coffee brownies healthy, Frosted coffee brownies recipe, Frosted coffee brownies with cocoa powder, Mocha brownies with brewed coffee
Prep Time: 20 minutes
Cook Time: 30 minutes
Cooling & Frosting Time: 1 hour
Total Time: 1 hour 50 minutes
Servings: 12 brownies
Calories: 320kcal
Cost: $8

Equipment

  • 1 8x8 inch baking pan (Line with parchment for easy removal)
  • 1 Parchment paper (Overhang for easy lifting)
  • 1 Large mixing bowl (For combining batter)
  • 1 Whisk or electric mixer (For smooth mixing)
  • 1 Rubber spatula (For folding batter and scraping sides)
  • 1 Offset spatula (For frosting evenly)
  • - Measuring cups and spoons (Accurate measurements)

Ingredients

For the Coffee Brownies

  • ½ cup Unsalted butter - Melted
  • 1 cup Granulated sugar
  • 2 large Eggs - Room temperature
  • 1 teaspoon Vanilla extract
  • ⅓ cup Unsweetened cocoa powder - Sifted for smoothness
  • ½ cup All-purpose flour
  • ¼ teaspoon Salt
  • ¼ teaspoon Baking powder
  • 2 tablespoon Instant espresso powder - Dissolved in hot water
  • ¼ cup Hot water - For dissolving espresso

For the Coffee Frosting

  • ½ cup Unsalted butter - Softened
  • 3 cups Powdered sugar
  • 2 tablespoon Brewed coffee or espresso - Cooled
  • 1 tablespoon Instant espresso powder
  • 1 teaspoon Vanilla extract
  • 2–3 tablespoon Heavy cream or milk - To reach spreadable consistency
  • 1 tablespoon Bourbon - Optional – adds warmth & depth

Optional Add-ins

  • ½ cup Chocolate chips - For extra richness
  • ½ cup Chopped walnuts - Adds crunch
  • – – Sea salt flakes - Sprinkle on top before serving

Instructions

  • Preheat oven to 350°F (175°C). Line an 8x8-inch pan with parchment paper, leaving overhang for easy removal.
    Mixing bowl filled with glossy chocolate brownie batter, with flour and melted butter being folded in using a wooden spoon.
  • Dissolve espresso powder in hot water. In a large bowl, whisk melted butter, sugar, eggs, and vanilla until smooth. Whisk in cocoa powder, then stir in cooled espresso mixture. Fold in flour, salt, and baking powder until just combined.
  • Pour batter into the prepared pan and spread evenly. Bake 25–30 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs. Cool completely in the pan.
    Overhead view of ingredients for coffee frosting — a bowl of whipped coffee buttercream surrounded by butter cubes, coffee beans, brewed coffee, sugar, and espresso powder.
  • Beat butter until fluffy. Gradually add powdered sugar, then mix in espresso powder, brewed coffee, vanilla, and optional bourbon. Add cream as needed for a spreadable consistency and beat until light and silky.
  • Spread frosting over cooled brownies, refrigerate 30 minutes to set, then lift out of the pan and cut into squares to serve.
    Close-up of frosted coffee brownies on a white plate, highlighting the thick, smooth layer of coffee frosting over moist chocolate brownie squares.

Notes

Nutrition information is automatically calculated, so should only be used as an approximation.

Nutrition

Serving: 80g | Calories: 320kcal (16%) | Carbohydrates: 42g (14%) | Protein: 3g (6%) | Fat: 16g (25%) | Saturated Fat: 10g (63%) | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Cholesterol: 65mg (22%) | Sodium: 120mg (5%) | Potassium: 160mg (5%) | Fiber: 2g (8%) | Sugar: 34g (38%) | Vitamin A: 450IU (9%) | Calcium: 25mg (3%) | Iron: 1.5mg (8%)
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