Chewy, bright, and made with the whole Meyer lemon
Have you ever had a taste for a dessert and you know exactly what it will taste like when you take that first bite? And then it tastes like nothing. I run into that problem frequently with lemon recipes. So many taste like a hint of lemon, mild, pretty, and forgettable. These lemon blondies are not that.
I first came across this recipe while sitting in my hairdresser’s chair, flipping through a magazine the way you do when you have nowhere else to be. Something about it caught my attention, the whole lemon going right into the food processor, peel and pith and all, blitzed directly into the batter. I took a screenshot and promptly forgot all about it.
Then my friend Annie of the blog Most Lovely Things reached out. She is working on a book, Made with Love: 100 Recipes for Gifting from the Kitchen, coming in 2027, and she asked if I would like to join her today to share a cookie or bar recipe. My mind went straight back to that screenshot. These lemon blondies are bright, chewy, dense, and the kind of thing you will want to bring to someone because they feel like a gift.
This post contains affiliate links. If you make a purchase I will earn a small commission at no extra cost to you. As an Amazon Associate I earn from qualifying purchases.
Lemon Blondies vs. Lemon Brownies: What Is the Difference?
Before we get into the recipe, I want to address the name confusion, because I see it every time I search for this kind of bar. Lemon blondies and lemon brownies are the same thing. The names are used interchangeably, and honestly both are right. A chocolate brownie gets its color and density from cocoa powder. Those are the big differences. Take away the cocoa powder, swap in brown sugar and butter, and you have a blondie. The texture of a brownie is what everyone is chasing here: that dense, fudgy, slightly chewy center with edges that are just a little more set. The biggest difference between a lemon blondie and a lemon cake recipe is exactly that. A cake is light and airy. A blondie has a brownie-like texture, heavy and satisfying, with a chew that cake cannot give you.
Lemon blondies also differ from lemon bars in one important way. Lemon bars have a shortbread crust and a bright lemon curd filling on top. They are delicious, but the structure is different. A lemon blondie is baked as a single batter all the way through, more like a lemon brownie than a layered bar. If you have been searching for lemon brownies and landed here, welcome. You are in exactly the right place.
Why This Is My Go-To Lemon Brownie
Most lemon desserts rely on lemon extract or bottled juice, and that is where so many of them fall flat. Lemon extract can taste synthetic, and bottled juice has had all the life pressed out of it. This lemon blondies recipe uses fresh lemons only, and not just the juice. The entire lemon goes in, which means you get the fresh lemon juice, the fresh lemon zest, the aromatic essential oils from the peel, and the natural pectin from the pith. That is a bright lemon flavor that actually tastes like the fruit, not like a candle someone named after the fruit.
Meyer lemons are worth seeking out here. They are sweeter and less acidic than regular lemons, with a thinner peel that breaks down more smoothly in the food processor. There is also a faint floral note in a Meyer lemon that a regular lemon does not quite have, something close to lemon oil without any of the bitterness. That said, fresh lemons of any variety will give you a far better result than lemon extract. The perfect lemon flavor and perfect lemon flavour in these bars comes from the fresh juice and fresh lemon zest working together with the whole-lemon pulp.
What Makes These Lemon Blondies So Good
This is an easy recipe, but the technique decisions behind it are what make it work. Brown sugar and granulated sugar together give you a deeper sweetness with a perfect balance that holds its own against the tartness of the lemon. Melted butter instead of creamed butter keeps the blondie batter dense and fudgy rather than fluffy. You do not need a stand mixer for this. Everything comes together in the food processor, which does double duty by processing the lemon and mixing the wet ingredients.
Pulsing the flour just until it disappears into the wet ingredients keeps gluten development minimal. Streaks of flour disappearing into the batter is exactly what you are watching for. Stop as soon as they are gone. Overworking the batter is the easiest way to end up with a tough bar instead of the chewy texture you are after.
One more thing: large eggs, at room temperature, make a real difference. A cold egg straight from the refrigerator can cause the melted butter to seize slightly. Set your egg out for 20 minutes before you start and you will have no trouble at all.
Equipment You Will Need
This is a simple recipe in terms of equipment, which is part of why it has become such a go-to recipe in my kitchen. Here is what you need:
Food processor. Non-negotiable. You need a sharp blade to break the whole lemon down into fine pulp. A large mixing bowl and a box grater can get you there in a pinch, but the texture will not be as smooth and the lemon flavor will not be as evenly distributed through the blondie batter.
9-inch square baking pan. This is the standard for blondies and brownies and gives you the right ratio of edge to center. Metal pans give you crisper edges and more reliable baking times. Glass pans conduct heat more slowly, so if you use one of those, start checking at 25 minutes and expect bake times to run a couple of minutes longer.
Parchment paper. Line the prepared baking pan with it and leave overhang on two sides. This is what makes easy removal possible. You lift the whole slab out in one piece, cut it on a board, and get clean squares every time.
Rubber spatula. For spreading the thick blondie batter into an even layer and for scraping every last bit out of the processor. An offset spatula is useful too, for spreading the lemony glaze smoothly over the cooled bars.
Wire rack. For cooling. The bars need air underneath them or the bottom steams and turns soft.
You do not need a stand mixer. You do not need anything beyond simple ingredients and a bit of patience while the bars cool. This is a simple recipe with results that taste far more impressive than the effort involved.
Lemon Blondie Recipe
Ingredients
2 medium Meyer lemons, scrubbed and divided, plus thin slices for garnish
1 1/4 cups granulated sugar
1/2 cup packed light brown sugar
1/2 cup (4 ounces) unsalted butter, melted
1 large egg, room temperature
2 1/4 cups all-purpose flour (about 9 1/2 ounces)
1 teaspoon baking powder
1 teaspoon kosher salt
1 1/4 cups confectioners’ sugar (powdered sugar / icing sugar), divided
Directions
1. Preheat the oven to 350°F. Spray a 9-inch square baking pan with cooking spray and line it with parchment paper, leaving some parchment paper on two sides to help remove the bars from the pan. Set the prepared baking pan aside.
2. Cut off and discard the ends from one lemon. Quarter the lemon and remove seeds. Transfer to the food processor and process until finely chopped, about 1 minute. Measure out 1/3 cup of the pulp and discard any extra, or make another pan of these bars Return the reserved 1/3 cup pulp to the processor.
3. Add the granulated sugar, brown sugar, melted butter, and large egg. Process sugars until smooth and well combined, about 15 seconds. Some versions of this recipe include a teaspoon of pure vanilla extract at this stage, add it if you like vanilla and the softness that it adds to a recipe.
Add the flour, baking powder, and salt. Pulse the dry ingredients until just incorporated, about 5 pulses. Scrape down the sides as needed. Watch for streaks of flour and stop as soon as they disappear. The blondie batter will be thick. Transfer it to the prepared baking pan and use a rubber spatula or an offset spatula to spread it into an even layer.
4. Bake tthe bars until the edges are set and golden brown and a wooden pick inserted into the center comes out with a few moist crumbs, 25 to 30 minutes. Bake times vary by oven. Start checking at 20-25 minutes. Transfer the pan to a wire rack and cool completely, about 1 hour and 30 minutes. Do not rush this step.
5. Zest and juice the remaining lemon, you need 1 teaspoon fresh lemon zest and 2 tablespoons fresh lemon juice. Whisk together with 1 cup of sifted confectioners’ sugar in a large bowl until smooth. Add the remaining 1/4 cup confectioners’ sugar, 1 tablespoon at a time to the glaze if needed, to make a tart lemon glaze thick enough to drizzle without running off the bars. Use an offset spatula or the back of a spoon to spread the glaze over the cooled blondies or drizzle glaze on the top in a cris cross pattern.. Garnish with small lemon slices and cut into bars.
Tips for the Best Results
If you want even more lemon flavor, rub the lemon zest into the granulated sugar with your fingertips before adding it to the processor. This releases the essential oils from the zest and makes the bars taste even more lemony. It is an extra step and not required, but for a true fan of lemon desserts it is worth it.
Do not skip the cooling time. I know it is hard to wait when your kitchen smells so good. But cutting into warm blondies will give you crinkly tops and a crumbly mess instead of clean squares with straight edges.
Watch your bake times carefully. At 20-25 minutes the bars may still look underdone in the center, which is fine. You want a few moist crumbs on the skewer, not wet batter, and not a completely clean pick either. A clean pick means overbaked, and the fudgy texture will be gone.
Use a measuring cup to portion the pulp precisely. Too much lemon pulp can make the bars dense in the wrong way. Exactly 1/3 cup is the sweet spot.
Fresh juice only. Lemon extract or lemon oil will give you a flat, one-note result. The zesty flavor in these bars comes entirely from fresh juice and fresh lemon zest.
Variations and Swaps
This lemon blondies recipe is flexible. Here are some of my favorite ways to change it up:
Strawberry lemon blondies. Press a handful of fresh sliced strawberries into the top of the batter before baking. The berries soften as they bake and create little pockets of jam-like sweetness against the bright lemon base. A strawberry lemon blondie is a wonderful spring or summer dessert, the kind of bar that belongs at a picnic or a bridal shower.
White chocolate. Fold half a cup of white chocolate chips into the batter after you pulse in the flour.
Lemon poppy. Stir 2 tablespoons of poppy seeds in with the dry ingredients. Classic for a reason.
Lemon lavender. Add 1 teaspoon of dried culinary lavender to the food processor when you blend the lemon. No more than that.
Gluten-free. Swap in a 1-to-1 gluten-free flour blend. Avoid cake flour here, as it will make the bars too soft and cakey. The texture will be slightly more crumbly but the fresh lemon flavor holds completely.
You can make these brownies with regular lemons from the grocery store, they will be just as delicious, but a little mroe tart.
How to Store Leftover Lemon Blondies
Once the simple lemon glaze has set, cut the cooled blondies into squares and store leftover lemon blondies in an airtight container at room temperature for 3-4 days. Layer parchment between the bars if you are stacking them to protect the glaze.
They also keep in the refrigerator for up to a week. The cold firms up the bars, almost more brownie-like. Let them come back to room temperature before serving, or eat them straight from the fridge if you prefer a denser bite.
To freeze, wrap the unglazed bars tightly in plastic wrap and then foil and freeze for up to 3 months. Thaw overnight in the refrigerator, add the lemony glaze, and serve. The confectioners’ sugar glaze does not freeze well, so always glaze after thawing.
One thing worth knowing: these taste better the next time you have one. The lemon flavor deepens overnight and the texture firms up. If you can bake them the day before you plan to serve them, do it.
What to Serve With Lemon Blondies
For any lemon lovers out there, these are wonderful on their own, but here are a few pairings that make them even better:
A spoonful of lemon curd alongside each bar adds a little extra citrus flavor.
Strong black coffee, a perennial favorite.
Fresh raspberries and lightly sweetened whipped cream. Simple, lovely, and delicious.
Earl Grey tea. This is my afternoon tea favorite, and it is perfect with these bars.
These delicious lemon blondies are one of those old reliable bars that almost never disappoint, and this lemon blondies recipe is one I find myself coming back to again and again. They travel well to a gathering, they keep for days, and they always earn a second look when people realize they are not what they expected. Happy baking.
Are you a lemon dessert loyalist, or do you find yourself gravitating toward something richer when the baking mood strikes?
Don’t forget to visit Annie at Mostly Lovely Things to get the recipe for her Browned Butter Peach Shortbread Bars.
If you make these, I would love to see them. Come find me on Pinterest and share what you thought.
You Might Also Enjoy
Print
Lemon Blondies
Chewy, bright, and made with the whole lemons!
- Total Time: 40 minutes
- Yield: 16 servings 1x
Ingredients
2 medium Meyer lemons, scrubbed and divided, plus thin slices for garnish
1 1/4 cups granulated sugar
1/2 cup packed light brown sugar
1/2 cup (4 ounces) unsalted butter, melted
1 large egg, room temperature
2 1/4 cups all-purpose flour (about 9 1/2 ounces)
1 1/4 cups confectioners’ sugar (powdered sugar / icing sugar), divided
Instructions
1. Preheat the oven to 350°F. Spray a 9-inch square baking pan with cooking spray and line it with parchment paper, leaving some parchment paper on two sides to help remove the bars from the pan. Set the prepared baking pan aside.
2. Cut off and discard the ends from one lemon. Quarter the lemon and remove seeds. Transfer to the food processor and process until finely chopped, about 1 minute. Measure out 1/3 cup of the pulp and discard any extra, or make another pan of these bars Return the reserved 1/3 cup pulp to the processor.
3. Add the granulated sugar, brown sugar, melted butter, and large egg. Process sugars until smooth and well combined, about 15 seconds.
Add the flour, baking powder, and salt. Pulse the dry ingredients until just incorporated, about 5 pulses. Scrape down the sides as needed. Watch for streaks of flour and stop as soon as they disappear. The blondie batter will be thick. Transfer it to the prepared baking pan and use a rubber spatula or an offset spatula to spread it into an even layer.
4. Bake tthe bars until the edges are set and golden brown and a wooden pick inserted into the center comes out with a few moist crumbs, 25 to 30 minutes. Bake times vary by oven. Start checking at 20-25 minutes. Transfer the pan to a wire rack and cool completely, about 1 hour and 30 minutes. Do not rush this step.
5. Zest and juice the remaining lemon, you need 1 teaspoon fresh lemon zest and 2 tablespoons fresh lemon juice. Whisk together with 1 cup of sifted confectioners’ sugar in a large bowl until smooth. Add the remaining 1/4 cup confectioners’ sugar, 1 tablespoon at a time to the glaze if needed, to make a tart lemon glaze thick enough to drizzle without running off the bars. Use an offset spatula or the back of a spoon to spread the glaze over the cooled blondies or drizzle glaze on the top in a cris cross pattern. Garnish with small lemon slices and cut into bars.
Notes
Recipe from Food & Wine Magazine
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baked
I am on my way to visit my daughter and we’ll be making these together. Can’t wait.