If you love brownies and you love coffee, this recipe will instantly become your new obsession. These Frosted Coffee Brownies are deeply chocolatey, perfectly fudgy, and topped with a smooth coffee-infused frosting that adds the most beautiful mocha flavor. Everything comes together easily, and the brownies bake up with a shiny top and dense, rich center—just like you want them to.
Whether you’re baking for a party, for gifting, or for yourself (zero judgment!), these brownies are guaranteed to disappear fast.
Quick Facts
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Prep Time: 15 minutes
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Cooking Time: 25 minutes
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Cooling + Frosting Time: 30 minutes
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Total Time: 1 hour 10 minutes
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Serving Size: 12–16 brownies
Why You’ll Love These Coffee Brownies
These brownies take everything good about a classic chocolate brownie and elevate it with bold coffee flavour.
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Ultra-fudgy center
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Shiny crackly top
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Easy one-bowl recipe
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Coffee frosting that melts in your mouth
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Perfect for mocha lovers
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Taste amazing chilled or warm
The balance of chocolate and coffee gives these brownies café-style richness with homemade warmth.
Ingredients
For the Brownies
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1 cup unsalted butter
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1 ½ cups sugar
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¾ cup cocoa powder
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2 large eggs
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1 egg yolk
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1 ½ tsp vanilla extract
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¾ cup all-purpose flour
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½ tsp salt
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1 tbsp instant coffee dissolved in 1 tbsp hot water
For the Coffee Frosting
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4 tbsp softened butter
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1 ½ cups powdered sugar
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1 tbsp instant coffee dissolved in 1 tbsp milk
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1–2 tbsp extra milk (as needed)
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Pinch of salt
How to Make Frosted Coffee Brownies
Step 1: Melt Butter & Mix Cocoa
In a saucepan or microwave bowl, melt the butter. Stir in sugar and cocoa powder until smooth and shiny.
Step 2: Add Coffee & Eggs
Whisk in the coffee mixture, eggs, and egg yolk. Mix until glossy.
Step 3: Add Dry Ingredients
Fold in flour and salt until just combined. Do not overmix.
Step 4: Bake
Spread the batter into a lined 8×8 pan.
Bake at 350°F (175°C) for 22–28 minutes, until the center is set but still soft.
Step 5: Cool
Let brownies cool completely before frosting. This helps the frosting spread smoothly.
Step 6: Make the Frosting
Beat butter until creamy. Add powdered sugar, coffee mixture, salt, and enough milk for a spreadable texture.
Step 7: Frost & Slice
Spread the frosting over the cooled brownies, chill for 10–15 minutes, then cut into clean squares.
Serving Suggestions
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Serve chilled for a dense, fudgy bite.
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Warm slightly and top with a scoop of vanilla ice cream.
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Enjoy with a latte or cold brew for the ultimate coffee pairing.
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Add a drizzle of chocolate sauce for extra indulgence.
Tips for Customization
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Extra strong coffee flavor: Add more instant coffee to the batter.
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Add crunch: Mix in walnuts, pecans, or chocolate chips.
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Make mocha brownies: Use half cocoa, half melted chocolate.
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Frosting alternatives: Try cream cheese frosting or chocolate ganache.
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Salted version: Sprinkle flaky sea salt on top of the frosting.
Nutritional Info (Approx. per brownie)
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Calories: ~210
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Carbs: 28g
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Fat: 10g
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Sugar: 22g
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Protein: 2g
Values depend on size and frosting amount.
FAQs
1. Can I make these brownies without frosting?
Yes! They are delicious plain too—rich, fudgy, and chocolatey.
2. Can I use brewed coffee instead of instant?
Instant coffee gives stronger flavor without thinning the batter, but you can use 2 tbsp strong brewed coffee—just reduce the milk slightly in the frosting.
3. Why are my brownies cakey?
They may have been overbaked. Remove them when the center is still slightly soft.
4. Can I freeze coffee brownies?
Absolutely—freeze slices for up to 2 months. Frosting also freezes well.
5. Can I double the recipe?
Yes! Bake in a 9×13 pan for 28–32 minutes.
Final Thoughts
Frosted Coffee Brownies are the perfect treat when you want something decadent, chocolatey, and just a little caffeinated. They’re simple, delicious, and guaranteed to impress anyone who tries them. Make a batch once—and you’ll make them forever!
