Best Lemon Brownies Recipe

I can’t get over how these Lemonies turn out so dense, fudgy, and bursting with bright lemon flavor. That glossy lemon glaze is the little secret that makes them completely irresistible.

I am fully obsessed with these lemon brownies because they hit that dense, fudgy brownie texture without a single bite of chocolate. The lemon zest makes them bright and punchy, while fresh lemon juice keeps that tang sharp instead of flat.

I love how the center stays soft and rich, then the glaze comes in with that sweet-tart crackle on top. And yes, I will absolutely eat the corner piece first.

These are the kind of bars I keep “testing” until half the pan is gone. But honestly?

Worth it. Sticky, citrusy, bold, and way too easy to crave again.

Ingredients

• Melted butter makes these brownies rich, soft, and a little fudgy.
• Granulated sugar brings sweetness and that shiny, crackly top everyone loves.
• Eggs hold everything together and give the bars a tender bite.
• Lemon zest is where the real bright, fresh lemon flavor lives.
• Fresh lemon juice adds tang so the sweetness doesn’t feel too heavy.
• Vanilla rounds things out and keeps the lemon from tasting sharp.
• All purpose flour gives structure, but still keeps the texture soft.
• Baking powder adds just enough lift without turning them cakey.
• Fine salt makes the lemon pop and balances all that sugar.
• Powdered sugar dusting is optional, but it’s cute and bakery-ish.
• The lemon glaze is sweet, tart, and honestly the best sticky finish.
• Plus, extra zest in the glaze makes each bite feel brighter.
• Basically, that tiny pinch of salt keeps the glaze from tasting flat.

Ingredient Quantities

• 1 cup (226 g) unsalted butter, melted
• 1 1/2 cups (300 g) granulated sugar
• 2 large eggs, room temperature
• 1 tablespoon lemon zest (about zest from 2 lemons)
• 2 tablespoons fresh lemon juice
• 1 teaspoon vanilla extract
• 1 cup (125 g) all purpose flour
• 1/4 teaspoon baking powder
• 1/4 teaspoon fine salt
• Powdered sugar for dusting, optional
• Glaze ingredients:
  • 1 cup (120 g) powdered sugar
  • 2 to 3 tablespoons fresh lemon juice
  • 1/4 teaspoon lemon zest, optional
  • Pinch of salt

How to Make this

1. Preheat oven to 350°F (175°C). Line an 8×8 inch pan with parchment paper leaving an overhang for easy removal and lightly grease the paper.

2. In a medium microwave safe bowl or small saucepan, melt 1 cup (226 g) unsalted butter and let it cool slightly.

3. Whisk the melted butter with 1 1/2 cups (300 g) granulated sugar until combined. Add 2 large room temperature eggs one at a time, whisking well after each addition.

4. Stir in 1 tablespoon lemon zest, 2 tablespoons fresh lemon juice, and 1 teaspoon vanilla extract until smooth.

5. In a separate bowl, sift or whisk together 1 cup (125 g) all purpose flour, 1/4 teaspoon baking powder, and 1/4 teaspoon fine salt.

6. Fold the dry ingredients into the wet mixture just until no streaks of flour remain; do not overmix. Batter will be thick and glossy.

7. Spread the batter evenly into the prepared pan and bake for 20 to 25 minutes, until the edges are set and the center is slightly soft but not liquid. A toothpick inserted in the center should come out with a few moist crumbs.

8. Cool the brownies completely in the pan on a wire rack, about 1 hour, then remove using the parchment overhang.

9. To make the glaze, whisk together 1 cup (120 g) powdered sugar, 2 to 3 tablespoons fresh lemon juice, 1/4 teaspoon lemon zest if using, and a pinch of salt until smooth and pourable. Adjust lemon juice to reach desired consistency.

10. Pour the glaze evenly over cooled brownies, chill until set, then dust with additional powdered sugar if desired and cut into squares.

Equipment Needed

1. Oven and 8×8 inch baking pan lined with parchment paper
2. Parchment paper and cooking spray or butter for greasing
3. Microwave safe bowl or small saucepan for melting butter
4. Large mixing bowl and a separate small bowl for dry ingredients
5. Whisk and rubber spatula for mixing and folding
6. Measuring cups and spoons (for both dry and wet ingredients)
7. Microplane or box grater for lemon zest
8. Wire cooling rack and toothpick or cake tester
9. Knife or bench scraper for cutting brownies and a baking mitt or oven glove

FAQ

Best Lemon Brownies Recipe Substitutions and Variations

• Unsalted butter: substitute melted coconut oil, 1:1 by weight; or neutral vegetable oil, use 90 percent of the butter weight (for 1 cup butter use about 3/4 cup oil) to avoid an overly greasy texture
• All purpose flour: substitute a 1:1 gluten free all purpose flour blend (make sure it contains xanthan gum) or whole wheat pastry flour at a 1:1 ratio for a slightly nuttier, tender result
• Granulated sugar: substitute coconut sugar 1:1 for a less refined flavor and similar sweetness; or use maple syrup, reducing other liquids slightly and use about 3/4 cup syrup for 1 cup sugar plus bake a bit longer
• Eggs: substitute two flax eggs (2 tablespoons ground flaxseed mixed with 6 tablespoons water, let sit until gelled) for a vegan option; or use 1/2 cup unsweetened applesauce per egg for added moisture

Pro Tips

1. Let the melted butter cool until it is warm, not hot, before adding the eggs. Hot butter will start to cook the eggs and can make the batter grainy instead of silky.

2. Use a microplane for the lemon zest and zest only the yellow part. It gives bright citrus oils without the bitter pith, and finely grated zest distributes flavor evenly.

3. Stop baking when a toothpick comes out with a few moist crumbs and the center still jiggles slightly when you tap the pan. The brownies will continue to set as they cool, so pulling them a little early keeps them tender and not dry.

4. For clean, neat slices after glazing, chill the pan until the glaze firms, then warm a knife under hot water, dry it, and make each cut with one smooth stroke. Wipe the knife between cuts for perfect edges.