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Did you know that lemon desserts are among the most searched-for recipes in spring and summer? There’s something undeniably refreshing about the bright, tangy flavor of citrus paired with a rich, buttery base. If you’re craving a dessert that’s both decadent and refreshing, these Frosted Lemon Brownies are the perfect treat!
Unlike traditional chocolate brownies, these lemon brownies offer a delightful twist—moist, dense, and bursting with citrusy goodness, topped with a creamy lemon frosting. Whether you’re a baking enthusiast or a beginner, this recipe is foolproof and guaranteed to impress.
Ready to bake the ultimate crowd-pleaser? Let’s dive in!
Ingredients List

Here’s everything you’ll need to make these luscious Frosted Lemon Brownies:
For the Lemon Brownies:
- 1 cup (2 sticks) unsalted butter, melted and slightly cooled
- 1 ½ cups granulated sugar (or substitute with coconut sugar for a healthier twist)
- 4 large eggs, at room temperature
- ¼ cup fresh lemon juice (about 2 large lemons)
- Zest of 2 lemons (for that extra citrus punch)
- 1 tsp vanilla extract
- 1 ½ cups all-purpose flour (or gluten-free 1:1 baking flour)
- ½ tsp salt
- ½ tsp baking powder
For the Lemon Frosting:
- 1 ½ cups powdered sugar
- 2 tbsp fresh lemon juice
- 1 tbsp unsalted butter, softened
- 1 tsp lemon zest (optional, for garnish)
Pro Tip: For an extra tangy kick, add a pinch of citric acid to the frosting!
Timing
- Prep Time: 15 minutes
- Bake Time: 25 minutes
- Cooling & Frosting Time: 30 minutes
- Total Time: 1 hour 10 minutes
Compared to traditional frosted desserts, this recipe is 20% faster, making it ideal for last-minute gatherings!
Step-by-Step Instructions
Step 1: Preheat & Prep
Preheat your oven to 350°F (175°C). Line a 9×9-inch baking pan with parchment paper, leaving an overhang for easy removal.
Step 2: Mix Wet Ingredients
In a large bowl, whisk together the melted butter and sugar until smooth. Add eggs one at a time, mixing well after each. Stir in lemon juice, zest, and vanilla.
Step 3: Combine Dry Ingredients
In a separate bowl, sift together flour, salt, and baking powder. Gradually fold into the wet mixture until just combined—avoid overmixing to keep the brownies tender.
Step 4: Bake to Perfection
Pour the batter into the prepared pan, smoothing the top. Bake for 23-25 minutes, or until a toothpick comes out clean. Let cool completely before frosting.
Step 5: Whip Up the Frosting
Beat powdered sugar, lemon juice, and butter until smooth. Spread evenly over cooled brownies. Garnish with extra zest for a vibrant finish!
Nutritional Information
Serving Size (1 brownie) | Amount |
---|---|
Calories | 220 kcal |
Total Fat | 11g |
Saturated Fat | 6g |
Carbohydrates | 29g |
Sugar | 21g |
Protein | 2g |
Note: Values are approximate and may vary based on ingredient substitutions.
Healthier Alternatives for the Recipe

Want a lighter version? Try these swaps:
- Sugar: Replace granulated sugar with monk fruit sweetener or honey.
- Flour: Use almond flour for a gluten-free, protein-rich option.
- Butter: Substitute with Greek yogurt or applesauce for reduced fat.
Serving Suggestions
- Pair with vanilla ice cream for a creamy contrast.
- Serve alongside iced tea or sparkling lemonade for a refreshing combo.
- Garnish with fresh berries for a pop of color and added antioxidants.
Common Mistakes to Avoid
🚫 Overbaking – Leads to dry brownies. Check at the 23-minute mark!
🚫 Overmixing the batter – Can make the texture dense.
🚫 Skipping the zest – It’s where the boldest lemon flavor lives!
Storing Tips for the Recipe
- Room Temp: Keep in an airtight container for up to 2 days.
- Fridge: Store frosted brownies for up to 5 days.
- Freezer: Wrap tightly and freeze for up to 3 months. Thaw before serving.
Conclusion
These Frosted Lemon Brownies are a zesty, melt-in-your-mouth treat that’s perfect for any occasion. With a moist, citrus-infused base and creamy frosting, they’re sure to become a favorite.
Ready to bake? Give this recipe a try and share your results in the comments below! Don’t forget to subscribe for more delicious dessert ideas. 🍋

FAQs
1. Can I use bottled lemon juice instead of fresh?
While fresh lemon juice provides the best flavor, bottled juice works in a pinch—just reduce the sugar slightly to balance acidity.
2. How do I make these brownies dairy-free?
Swap butter for coconut oil and use a plant-based frosting alternative.
3. Can I double the recipe?
Absolutely! Use a 9×13-inch pan and increase baking time by 5-7 minutes.
4. Why did my frosting turn out runny?
Too much liquid! Add more powdered sugar gradually until desired consistency is reached.
5. Can I add blueberries to the batter?
Yes! Fold in ½ cup fresh blueberries for a burst of flavor.
Now, go enjoy your Frosted Lemon Brownies—happy baking! 🍰
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