Lemon Brownies

If regular brownies are your go-to but you’re in the mood for something lighter and more refreshing, these Lemon Brownies are a solid switch-up. They’ve got the fudgy, chewy bite you expect from a brownie, but with a bright citrusy bite. Think of them as a cross between a lemon bar and a lemon blondie—easy to make, great for sharing, and likely to disappear fast.

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I like having these ready for summer get-togethers, weekend hangouts, or potlucks. They’re easy to make ahead; I’ve even tucked a few unglazed ones in the freezer for later, and they come out just fine. These lemon bars are the kind of recipe that works whether you’re feeding a crowd or just craving something a little bit different, but still feels familiar.

Ingredients You’ll Need

You’ll need all the ingredients shown in the photograph below.

How to Make Lemon Brownies with Step-By-Step Instructions

Scroll down for the full recipe card containing a full printable recipe and measurements in both US customary and metric units.

You’ll find these lemon brownies quite easy to pull off if you follow my simple instructions and take your time with each step.

Prep the Pan and Oven

Start by preheating your oven to 350°F and lining an 8×8-inch baking pan with parchment paper. I use pre-cut parchment sheets that fit snugly in square pans—saves me the headache of trimming and folding. Leave a bit of overhang so you can lift the brownies out easily later once they’ve cooled.

Make the Lemon Brownie Batter

In a large mixing bowl, cream together the softened butter, sugar, and lemon zest using an electric hand mixer (ideally on medium speed for about 2–3 minutes) until the mixture is light and fluffy.

This traps just enough air to create a soft texture without making the brownies puff and collapse later. If you don’t already have one, I’d say grab a microplane zester—it gets all that lemon zest super fine without digging into the bitter white pith.

Beat in the eggs one at a time, mixing well after each one so everything’s fully combined. If you add both eggs at once, the mixture can curdle or separate. By taking a moment to mix after each egg, you can make sure the batter stays smooth and stable, giving your lemon brownies the right texture and structure.

Add the lemon juice and stir again. I just squeeze mine straight in using this citrus juicer, it catches seeds and makes cleanup way easier than fishing them out by hand.

Then, gently fold in the flour and baking powder, just until the batter is smooth and no streaks of dry patches remain—don’t overmix or the texture will tighten up.

Bake the Brownies

Pour the batter into your prepared baking pan and use a silicone spatula to spread it out evenly. Bake for about 20–25 minutes, or until top looks set and a toothpick inserted in the center comes out almost clean with just a few moist crumbs.

Let the brownies cool in the pan for at least 10–15 minutes before adding the glaze. They’ll still be warm, which helps the glaze spread smoothly and melt slightly into the top.

If you try to move or cut them too soon, they’re likely to fall apart or crack since they’re still soft and setting. Letting them rest gives them time to firm up, making them easier to glaze and much easier to slice later on.

Make the Lemon Glaze

While the brownies are cooling slightly, whisk together the powdered sugar, fresh lemon juice, and zest in a bowl with a grippy base until the glaze is smooth and pourable.

Remove from the Pan

Once the brownies have cooled slightly, use the parchment paper overhang to gently lift them out of the pan. This way, they’re easier to glaze evenly without the sides of the pan getting in the way.

Lifting them while they’re still slightly warm also helps the glaze settle nicely across the top without sliding off or pooling. Just be sure they’re firm enough to hold their shape before moving.

Glaze the Brownies

Spoon or pour the lemon glaze evenly over the warm brownies—it should melt just a bit into the top and create a light, glossy finish. Let the whole thing cool completely before so everything sets nicely.

Slice and Serve

Get a sharp chef’s knife and cut them into 16 squares, wiping the blade clean between cuts for the neatest results. If you want extra tidy edges, you can chill them briefly first before slicing. Serve on a platter, and enjoy!

And if you’re taking them on the go, I slide the cooled batch—still in the pan—into this insulated casserole carrier, which keeps them cool, level, and safe in the back seat without that awkward cling wrap panic.

Recipe Notes and Expert Tips

I’ve made these plenty of times and picked up a few simple tips along the way that make the process smoother and the results better each time.

• Line the Pan with Parchment: It makes it so much easier to lift the brownies out cleanly and cut them into neat squares.
• Use Room-Temp Butter: Room-temperature butter works best, so make sure it’s softened so it creams properly with the sugar and lemon zest.
• Use Fresh Lemon Zest: Don’t skip it—it’s where the real lemon flavor comes from. Bottled juice alone won’t give you the same bright taste.
• Beat the Eggs Gradually: Mixing in the eggs one at a time helps create a smooth, even batter that bakes up with the right structure.
• Don’t Overmix the Batter: Once the flour is in, stir just until you don’t see any more dry spots. Too much mixing will make the brownies too dense.
• Cool Slightly Before Glazing: The brownies should still be warm, but not hot—this helps the glaze set properly without sliding off.
• Use a Silicone Spatula for the Glaze: It spreads the lemon glaze more gently and gives you better control than a spoon or knife.
• Wait Until Fully Cool to Cut: The glaze firms up as it cools, so let the brownies sit until they’re firm enough for clean slices.

How to Store Leftovers

Once they’ve fully cooled and been sliced, you can store your lemon brownies in an airtight container at room temperature for up to 3 days. If your kitchen runs warm, you can refrigerate them instead, and they’ll keep for up to a week.

If you want to freeze them, go ahead—just skip the glaze as it can get a bit sticky or weepy when thawed. Cover your lemon brownie slices individually with plastic wrap, or place them in a freezer bag or freezer-safe container with parchment between the layers to prevent them from sticking.

They’ll last in the freezer for up to 2-3 months. Once you’re ready to serve, thaw them overnight in the fridge, then add the glaze, and dig in.

What to Serve With Lemon Brownies

Lemon brownies work well as a simple dessert on their own, but they’re also great when you pair them with a scoop of vanilla ice cream or a handful of fresh berries. If you’re serving them with other treats, they balance nicely with chocolate-based desserts or buttery cookies.

For a drink pairing, a hot cup of tea or a cold glass of lemonade keeps things fresh and bright without overpowering the lemon flavor.

More Easy Recipes for You to Try at Home

If you love fudgy and gooey, check out my other dessert favorites—they’re just as easy and delicious as this one!

• Biscoff Brownies
• Slutty Brownies
• Pumpkin Bars
• Pumpkin Chocolate Bars
• Chocolate Chip Cookie Bars