These Lemon Bar Cookies combine everything you love about classic lemon bars with the convenience of a grab-and-go cookie. Buttery, zesty, and perfectly balanced between tart and sweet, they feature crispy edges with a soft, chewy center — all dusted with powdered sugar for that signature lemon bar look. Ready in under 30 minutes with simple pantry staples, they're the ultimate crowd-pleasing treat for parties, bake sales, or everyday snacking.
Microplane zester or fine grater For zesting lemons
Measuring cups and spoons
Baking sheets 2–3 sheets needed
Parchment paper or silicone baking mats
Cookie scoop or tablespoon For portioning dough
Wire cooling rack
Small sifter or fine-mesh strainer For dusting powdered sugar
Ingredients
1cupunsalted butter226g, softened to room temperature (2 sticks)
1.5cupsgranulated sugar300g
2large eggsroom temperature
3tablespoonsfresh lemon juicefrom about 2 large lemons; bottled juice not recommended
2tablespoonslemon zestfrom about 2 large lemons
2.5cupsall-purpose flour315g; spooned and leveled
1teaspoonbaking powderensure it is fresh
0.5teaspoonsalt
For Dusting
0.5cuppowdered sugar60g; also called icing sugar or confectioners' sugar; add more for a sweeter finish
Instructions
Preheat your oven to 350°F (175°C) and line two baking sheets with parchment paper or silicone mats. Zest your lemons first, then juice them, and ensure butter and eggs are at room temperature.
Beat softened butter and granulated sugar on medium-high speed for 3–4 minutes until light, fluffy, and pale yellow, scraping down the sides as needed.
Add eggs one at a time, beating well after each addition, then mix in the fresh lemon juice and lemon zest on medium speed for about 1 minute until combined (slight curdling is normal).
In a separate bowl, whisk together the flour, baking powder, and salt until well combined and lump-free.
Add the dry ingredients to the wet mixture in three batches, mixing on low speed after each addition just until no dry flour streaks remain — do not overmix.
Scoop about 1½ tablespoons of dough per cookie, roll lightly into a ball, place 2 inches apart on prepared baking sheets, and gently flatten each ball slightly with your palm or the bottom of a glass.
Bake one sheet at a time in the center of the oven for 10–12 minutes, rotating the pan halfway through, until edges are set and just turning golden while centers still look slightly soft.
Cool cookies on the baking sheet for 5 minutes, then transfer to a wire rack and cool completely before sifting powdered sugar evenly over the top.
Notes
Use fresh lemon juice: Bottled juice lacks the bright, vibrant flavor this recipe depends on — fresh-squeezed is essential.
Don't skip the zest: Most of the lemon flavor comes from the essential oils in the zest, so measure it generously.
Room temperature matters: Cold butter or eggs can cause the dough to be lumpy and the cookies to bake unevenly.
Prevent spreading: If your kitchen is warm, chill the shaped dough balls in the refrigerator for 15–20 minutes before baking.
Don't overbake: Remove cookies when centers look slightly underdone — they continue cooking on the hot pan and will firm up as they cool.
Dust when completely cool: Powdered sugar will melt and disappear on warm cookies — always wait until fully cooled.
Boost lemon flavor: Add an extra tablespoon of zest or swap regular lemons for Meyer lemons for a sweeter, more complex citrus note.
Storage: Store in an airtight container at room temperature for up to 5 days, or refrigerate for up to 10 days.
Freezing: Freeze baked cookies (layers separated by parchment) for up to 3 months, or freeze raw dough balls for up to 2 months and bake from frozen, adding 2–3 minutes to the bake time.
Gluten-free option: Substitute a 1:1 gluten-free baking flour blend (with xanthan gum) for the all-purpose flour.