Simple, bright and tangy lemon blondies combine the soft chew of a cookie with the fudgy bite of a brownie. If you enjoy fresh lemon flavor and a rich, tender bar, this one‑bowl recipe is for you.
One of my favorite kitchen aromas is lemon zest rubbed into granulated sugar — bright, clean and instantly refreshing. That fragrant sugar is the foundation of these lemon blondies. They come together with just a few pantry staples in a single bowl for a quick, flavorful dessert that tastes like spring but works year‑round.
Like other fruit-forward desserts, these lemon bars feel light and rejuvenating. The tangy lemon paired with a sweet, tender blondie makes them a standout when you want something fresh but decadent.
Ingredients that Matter
This recipe uses a short list of common ingredients. Notes on the most important choices:
- Lemons: Fresh lemons are best — the zest provides essential oils and aroma you can’t get from bottled juice.
- All‑Purpose Flour: Regular unbleached all‑purpose flour gives the best texture. You can substitute half whole wheat for a nuttier result.
- Sugar: Granulated sugar keeps the flavor clean so the lemon shines. Avoid strongly flavored sugars.
- Eggs: Eggs bind and give structure; room temperature eggs mix more evenly.
- Butter: Melted unsalted butter adds richness. Substitute neutral oil or melted coconut oil for a dairy-free version.
- Vanilla: A touch of vanilla rounds the lemon and brightens the icing.
- Salt: A pinch balances sweetness and intensifies flavor.
- Powdered Sugar: The icing is simply powdered sugar, lemon juice and a splash of vanilla.
See the recipe card below for exact quantities.
How to Make Tangy Lemon Blondies
This is a simple, one‑bowl recipe. Follow these steps for bright, tender blondies:
- Preheat the oven to 350°F. Line an 8‑inch square pan with parchment, leaving a sling for easy removal.
- Place the granulated sugar in a large bowl and grate the zest of two lemons into it. Work the zest into the sugar with a fork or your fingers until it is very fragrant.
- Add the vanilla, a pinch of salt and the melted butter to the lemon‑scented sugar and stir to combine. Add eggs one at a time, mixing well after each addition.
- Fold in the flour until just combined, scraping the bowl so no streaks of flour remain.
- Transfer the batter to the prepared pan and smooth the top. Bake 20–25 minutes, until a toothpick in the center comes out clean and the edges are lightly golden.
- While the blondies bake, whisk together powdered sugar, lemon juice, vanilla and a pinch of salt until smooth. Add juice a little at a time until the icing is thick but spoonable.
- Cool the pan on a wire rack for about 10 minutes.
- Lift the blondies from the pan using the parchment sling and cool to room temperature (20–30 minutes). Spread the icing in a thin, even layer and let it set for 15–20 minutes.
- Slice the blondies into 2‑inch squares for neat portions.
- Serve immediately or garnish with thin lemon slices if desired.
Substitutions
Options to adapt these blondies:
- Gluten‑Free — Use a 1:1 gluten‑free flour blend in place of the all‑purpose flour.
- Dairy‑Free — Swap melted vegetable oil or cooled melted coconut oil for the butter; texture will be slightly more cake‑like.
- Eggs — For an egg‑free option, replace eggs with flax or chia “eggs” (1/4 cup ground seeds mixed with 3/4 cup water total for two eggs; let sit until gelled).
What’s the Difference Between Blondies and Brownies
Blondies and brownies are both bar desserts baked in a single layer and cut into squares. The main difference is flavor: brownies contain chocolate, while blondies do not. Blondies are generally lighter in color and can range from cakey to chewy depending on ingredients; this lemon blondie leans tender and slightly chewy so the lemon flavor stands out.
Equipment
You’ll need an 8‑inch square baking pan (metal or ceramic works). A whisk or fork is fine for mixing, though a hand mixer or stand mixer can make the job quicker if desired.
Storage
Store leftover blondies in an airtight container at room temperature for 2–3 days, in the refrigerator for 3–4 days, or freeze in a freezer‑safe bag for up to 3 months.
Adam’s Pro Tip
Use fresh lemons. Fresh zest carries essential oils that give the batter a floral, immediate lemon character you won’t get from bottled juice. For a truly bright lemon flavor, microplane the zest directly into the sugar and rub it in to release those oils.
FAQ
You can add leavening, but skipping baking powder or baking soda keeps the texture denser and more bar‑like. This lemon blondie recipe works well without either.
Yes. Substitute lime zest and juice one‑for‑one for a bright lime blondie. For orange, reduce sugar slightly since orange juice is sweeter.
More Desserts
If you like these blondies, try other simple desserts that highlight fresh fruit and bright flavors.
Dinner Ideas
Need dinner inspiration? Try simple roasted chicken, braised sliders or a citrus‑braised roast for bold weeknight flavors.
Recipe
Lemon Blondies
No reviews
- Author: Adam Dolge
- Total Time: 1 hour
- Yield: 24 blondies
Description
Simple, bright and tangy lemon blondies are a mashup of soft lemon cookies and sweet, chewy brownies. If you love fresh lemon and a decadent texture, try this easy one-bowl blondie recipe.
Ingredients
- 1 cup granulated sugar
- Zest of 2 lemons
- 2 Tbsp lemon juice, plus 2–3 Tbsp divided
- 1½ tsp vanilla extract, divided
- ½ cup unsalted butter, melted and cooled
- 2 large eggs
- ½ tsp table salt, plus a pinch
- 1½ cups all‑purpose flour (232 g)
- 1 cup powdered sugar, sifted (for icing)
- Thin lemon slices for garnish (optional)
Instructions
- Preheat oven to 350°F. Line an 8‑inch square pan with parchment, leaving an overhang.
- Place sugar in a large bowl and add lemon zest. Rub the zest into the sugar until very fragrant. Add 2 Tbsp lemon juice, 1 tsp vanilla and the melted butter; stir until smooth. Add eggs one at a time, then the salt, mixing after each addition.
- Fold in the flour until just combined, scraping the bowl so no streaks remain.
- Spread batter in the prepared pan and bake 20–25 minutes, until lightly golden and a toothpick comes out clean. Cool on a wire rack for 10 minutes.
- Make the icing by stirring powdered sugar with the remaining lemon juice, ½ tsp vanilla and a pinch of salt. Adjust with more juice to reach a spoonable consistency.
- Lift the blondies from the pan using the parchment and cool to room temperature (20–30 minutes). Spread the icing and let it set 15–20 minutes. Cut into 2‑inch squares and garnish if desired.
Notes
- Store in an airtight container at room temperature for up to 3 days or refrigerate for up to 5 days.
- Freeze in a freezer‑safe bag for up to 3 months.
- To make gluten‑free, substitute a 1:1 gluten‑free flour blend.
- To make dairy‑free, use vegetable oil or cooled melted coconut oil instead of butter.
- Use fresh lemons for best flavor — the zest contains essential oils that make these blondies sing.
- Allow the icing to set before slicing for clean edges.
- Prep Time: 15 minutes
- Cook Time: 20 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American