Zesty Lemon Shortbread Cookies
These lemon shortbread cookies are buttery, crisp, and loaded with fresh citrus flavor. A simple lemon glaze adds just the right amount of tangy sweetness without covering up the shortbread itself.
They come together in a single bowl, with a short chill before slicing and baking. The dough can hang out in the fridge for a day or two, so they are easy to fit into a busy week.
What Makes These Lemon Shortbread Cookies So Good
Shortbread can be dry or bland, but these stay tender from a high butter ratio and bright from a generous amount of lemon zest. The texture is sandy and crisp at the edges, with a clean, lemony finish.
The glaze is just powdered sugar and lemon juice, but it gives each cookie a little pop of zing that balances the richness. I make them whenever I want a cookie that feels a little special without pulling out a mixer.
Ingredients
- 1 cup unsalted butter, softened: use good quality butter for the best flavor
- 1/2 cup granulated sugar: plain white sugar creams evenly
- Zest of 2 large lemons: scrub the lemons well before zesting
- 2 cups all-purpose flour: spooned and leveled, not scooped
- 1/4 tsp salt: fine sea salt or table salt
- 1 cup powdered sugar: for the glaze
- 2 to 3 tbsp fresh lemon juice: plus more if needed, to thin the glaze
Variations / Substitutions
- Use orange or lime: swap the lemon zest and juice for orange or lime for a different citrus note.
- Add fresh herbs: stir 2 tsp finely chopped rosemary or thyme into the dough with the flour.
- Make it gluten-free: use a 1:1 gluten-free flour blend that includes xanthan gum.
- Skip the glaze: the cookies are still delicious without it, just a little less sweet and tangy.
Moist Lemon Cake is another dessert you’d probably love if you enjoy these cookies.
How to Make Lemon Shortbread Cookies
Step 1: Cream the Butter, Sugar, and Zest
In a large bowl, beat the 1 cup softened butter, 1/2 cup sugar, and zest of 2 lemons with a wooden spoon or an electric mixer on medium speed. Beat until the mixture is pale and fluffy, about 2 minutes with a mixer or 4 minutes by hand.
Scrape down the sides once so everything combines evenly. The butter should feel light and the sugar grains will be coated in lemon oil, which carries the flavor all through the dough.
Step 2: Mix the Dough
Add the 2 cups flour and 1/4 tsp salt to the butter mixture. Mix on low speed or stir with the wooden spoon just until the flour disappears and the dough starts to clump together, about 30 seconds.
The dough will look crumbly at first, then turn into a soft, uniform ball. Stop mixing as soon as it comes together because overworking the flour makes the cookies tough.
Step 3: Shape and Chill
Turn the dough out onto a piece of parchment or plastic wrap and shape it into a log about 2 inches wide and 8 inches long. Wrap the log tightly and chill in the refrigerator for at least 1 hour, or up to 2 days.
Chilling firms up the butter so the cookies hold their shape in the oven. If you skip this step, they may spread into thin, greasy puddles instead of neat rounds.
Step 4: Slice and Bake
Preheat the oven to 350°F (175°C) and line two baking sheets with parchment. Unwrap the chilled log and slice it into rounds a generous 1/4 inch thick, using a sharp knife. Arrange the slices on the sheets, leaving about 1 inch between them.
Bake for 12 to 14 minutes, until the edges are just starting to turn golden. The centers will look pale and set. Let the cookies cool on the sheets for 5 minutes, then transfer them to a wire rack to cool completely.
Step 5: Glaze and Serve
In a small bowl, whisk the 1 cup powdered sugar with 2 tablespoons of the lemon juice until smooth. Add more juice a few drops at a time if the glaze seems too thick to drizzle.
Drizzle the glaze over the cooled cookies with a spoon or dip the tops lightly into the bowl. Let them sit until the glaze firms up, about 20 minutes, then serve or pack into a container.
Tips for the Best Lemon Shortbread
- Soften the butter properly: it should give slightly when pressed with a fingertip but not be oily or melted. Too soft and the cookies spread.
- Zest directly into the sugar: if you have time, rub the lemon zest into the sugar with your fingers before creaming. This releases the oils and makes the lemon flavor stronger.
- Slice with a serrated knife: a gentle sawing motion gives cleaner rounds than a straight-edged knife, especially if the dough is very firm.
Bake times by thickness:
| Slice Thickness | Bake Time at 350°F |
|---|---|
| 1/4 inch | 12 to 14 minutes |
| 1/2 inch | 14 to 16 minutes |
Storing Leftover Shortbread
- Room temperature: keep the glazed cookies in an airtight container for up to 5 days. Place parchment between layers so the glaze does not stick.
- Freeze the dough: wrap the unbaked log in a second layer of plastic and freeze for up to 3 months. Slice and bake straight from frozen, adding 1 to 2 minutes to the bake time.
- Freeze baked cookies: unglazed cookies freeze well for up to 2 months. Thaw and glaze before serving.
Frequently Asked Questions
Can I make these cookies without the glaze?
Yes. They will still be buttery and lemony, just a little less sweet and with a simpler finish.
Why did my cookies spread in the oven?
The dough was likely not chilled long enough, or the butter was too soft when you mixed it. Always chill the log until very firm before slicing.
Can I use bottled lemon juice for the glaze?
Fresh juice works better for brightness, but bottled will do in a pinch. The flavor of the glaze just won’t be as fresh.
How do I avoid a thick, pasty glaze?
Start with 2 tablespoons of lemon juice and add more a few drops at a time. You want a thick drizzling consistency, not a runny one.
Lemon Shortbread Cookies Recipe
Ingredients
Method
- Beat the butter, sugar, and lemon zest in a large bowl until pale and fluffy.
- Mix in the flour and salt just until a dough forms.
- Shape the dough into a 2-inch-wide log, wrap tightly, and chill at least 1 hour.
- Preheat oven to 350°F (175°C). Slice the log into 1/4-inch-thick rounds and bake on lined sheets for 12 to 14 minutes until edges are golden. Cool completely.
- Whisk powdered sugar with 2 tbsp lemon juice until smooth, adding more juice if needed. Drizzle over cooled cookies and let the glaze set.
Notes
