These lemon brownie bars are a delightful twist on the classic brownie. Instead of the rich chocolate flavor, they feature a refreshing lemony tang balanced with a moist, dense texture that makes them irresistible. They’re the perfect treat for anyone who loves citrus desserts.
Why You’ll Love This Recipe
I love this recipe because it combines the bright, zesty flavor of lemons with the fudgy, chewy texture of brownies. I find that it’s a refreshing change from traditional chocolate desserts, and it’s always a hit at gatherings. I also like how simple the ingredients are, making it easy to whip up whenever I crave something sweet and tangy.
Ingredients
(Here’s a tip: Check out the full list of ingredients and measurements in the recipe card below.)
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All-purpose flour
 - 
Granulated sugar
 - 
Unsalted butter
 - 
Eggs
 - 
Fresh lemon juice
 - 
Lemon zest
 - 
Baking powder
 - 
Salt
 - 
Powdered sugar (for optional glaze)
 - 
Milk (for optional glaze)
 
Directions
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I preheat my oven to 350°F (175°C) and line a baking pan with parchment paper.
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I cream together the butter and sugar until light and fluffy.
 - 
I beat in the eggs one at a time, then stir in the lemon juice and zest.
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In another bowl, I whisk together flour, baking powder, and salt, then gradually fold it into the wet mixture.
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I spread the batter evenly in the prepared pan and bake for about 20–25 minutes, or until the edges are set and a toothpick inserted comes out clean.
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If I want to add glaze, I mix powdered sugar with a little milk and lemon juice, then drizzle it over the cooled bars before cutting.
 
Servings and timing
This recipe makes about 12 to 16 lemon brownie bars, depending on how I cut them. It usually takes me 10 minutes to prepare the batter and about 25 minutes to bake, with an additional 15 minutes for cooling before slicing.
Variations
I sometimes add white chocolate chips to the batter for a creamy sweetness that complements the lemon flavor. For a slightly different touch, I sprinkle shredded coconut on top before baking. If I want a more intense citrus kick, I use a combination of lemon and lime zest.
storage/reheating
I store the lemon brownie bars in an airtight container at room temperature for up to 3 days. If I want to keep them longer, I refrigerate them for up to a week. They also freeze well for about 2 months. To reheat, I let them come to room temperature or warm them briefly in the microwave.
FAQs
Can I make lemon brownie bars ahead of time?
Yes, I often make them a day in advance, and they taste even better the next day as the lemon flavor deepens.
Can I use bottled lemon juice instead of fresh?
I prefer using fresh lemon juice for the best flavor, but bottled juice works in a pinch if that’s what I have on hand.
How do I know when the bars are done baking?
I look for slightly golden edges and test with a toothpick—if it comes out clean or with a few moist crumbs, the bars are ready.
Can I make these gluten-free?
Yes, I substitute the all-purpose flour with a 1:1 gluten-free baking flour, and the texture stays just as fudgy.
Do I have to use the glaze?
No, I sometimes skip it when I want a lighter treat. The bars are delicious plain, but the glaze adds an extra layer of sweetness and tang.
Conclusion
These lemon brownie bars are one of my favorite desserts when I want something sweet but not too heavy. I love how the tartness of the lemon balances the rich, chewy texture. Whether I serve them at a party, pack them for a picnic, or keep them as a personal treat, they always brighten my day.
PrintLemon Brownie Bars Recipe
These lemon brownie bars are a bright, zesty twist on the classic brownie, offering a moist, chewy texture and refreshing citrus flavor. Perfect for lemon lovers seeking a unique dessert.
- Prep Time: 10 minutes
 - Cook Time: 25 minutes
 - Total Time: 50 minutes (includes cooling time)
 - Yield: 12-16 bars
 - Category: Dessert
 - Method: Baking
 - Cuisine: American
 - Diet: Vegetarian
 
Ingredients
- 1 cup all-purpose flour
 - 1 cup granulated sugar
 - 1/2 cup unsalted butter, softened
 - 2 large eggs
 - 2 tbsp fresh lemon juice
 - 1 tbsp lemon zest
 - 1/2 tsp baking powder
 - 1/4 tsp salt
 - 1 cup powdered sugar (for optional glaze)
 - 2 tbsp milk (for optional glaze)
 - 1 tbsp lemon juice (for optional glaze)
 
Instructions
- Preheat oven to 350°F (175°C) and line an 8×8-inch baking pan with parchment paper.
 - Cream together the butter and granulated sugar until light and fluffy.
 - Beat in the eggs one at a time, then stir in the lemon juice and zest.
 - In a separate bowl, whisk together flour, baking powder, and salt.
 - Gradually fold the dry ingredients into the wet mixture until just combined.
 - Spread the batter evenly in the prepared pan.
 - Bake for 20–25 minutes, or until the edges are set and a toothpick inserted in the center comes out clean.
 - Allow to cool completely in the pan on a wire rack.
 - For the optional glaze, mix powdered sugar with milk and lemon juice until smooth.
 - Drizzle glaze over cooled bars, then cut into squares and serve.
 
Notes
- For a richer flavor, add 1/2 cup white chocolate chips to the batter.
 - Top with shredded coconut before baking for extra texture.
 - Use fresh lemon juice for the best flavor.
 - The bars can be made a day in advance; flavor deepens over time.
 - Store in an airtight container at room temperature for 3 days or refrigerate for up to a week.
 
Nutrition
- Serving Size: 1 bar
 - Calories: 180
 - Sugar: 22g
 - Sodium: 85mg
 - Fat: 8g
 - Saturated Fat: 5g
 - Unsaturated Fat: 2g
 - Trans Fat: 0g
 - Carbohydrates: 26g
 - Fiber: 0g
 - Protein: 2g
 - Cholesterol: 40mg
 
