Pistachio Lemon Shortbread Bars

Sweet and tart with a slightly nutty finish, these Pistachio Lemon Shortbread Bars are the perfect combination of all your favorite sweets. The buttery shortbread crust gets an upgrade from punchy green pistachios while the tangy lemon curd and powdered sugar topping create a perfect balance. These are perfect cold or at room temperature and are easy to take along to picnics, barbecues, and bake sales.

A sweet-tart treat with a little salty crunch

You know that feeling when you take a bite of something and everything just clicks? That’s what these lemon bars do for me. They’re bright, buttery, and just tart enough to keep you coming back for one more sliver… then another.

I’ve made a lot of lemon bars over the years, but this batch? This one has a twist. I snuck pistachios into the shortbread crust and scattered them through the lemon filling too. Not just for flavor, though they add a lovely salty crunch, but because my husband’s two favorite ingredients in the world are lemon and pistachio.

If there’s a dessert with either, he’s interested, hello buttery pistachio cookies. If it has both, I can barely get the pan out of the oven before he’s circling the kitchen like a hawk.

And honestly? These bars hold their shape better than most, thanks to the finely chopped pistachios. No more lemon goo sliding off your fingers mid-bite. You can actually eat them like a normal human without needing a fork or five napkins.

If you’re already a fan of classic lemon bars, or you’ve made those lemon blueberry ones with the jammy berry swirl, these are going to be right up your alley.

Let’s Talk Lemons

Should you use regular lemons or Meyer lemons? Totally up to you. I go with standard lemons for that sharp citrus bite—it balances all the sugar. But if you’ve got Meyers and prefer a little more mellow sweetness, go for it.

Whatever you choose, use fresh juice. Bottled lemon juice is fine in a pinch, but these bars deserve better. A few minutes with a citrus juicer is totally worth it.

You’ll sprinkle powdered sugar on top once they’ve cooled or you can add an interesting design.

Key Ingredients

You’ll find the full ingredient list and step-by-step instructions in the recipe card below, but here’s what matters most:

Fresh lemon juice and zest – this is where all the flavor is, so don’t skimp.

Salted pistachios – finely chopped for the crust and the filling. Get shelled ones. Your fingers will thank you.

How I Make These Bars

Step One: Prep your pan

Preheat oven to 350º. Line an 8-inch square pan with parchment paper. This makes getting them out of the pan a breeze.

Step Two: Make Crust

Place pistachios in a food processor and process until finely ground, but not so much that it turns into butter. Add flour, white sugar, and salt and process to combine. Add cold butter and process.

Step Three: Bake the crust

Step Four: Whisk up the filling.

Pour on top of the baked crust and bake again.

Step Five: Decorate

Let cool completely before decorating.

Pro Tips That Make a Difference

• Don’t overmix the shortbread. Cold butter chunks = magic pockets of richness.
• Zest your lemons before juicing. Way easier.
• Want to get fancy? Sprinkle extra pistachios or zest on top with the powdered sugar.
• If your bars seem too soft to cut cleanly, pop them in the fridge for a bit. They’ll firm up beautifully.

These lemon bars are the kind of thing that disappear fast. You’ll think you have plenty, and then somehow, between “just one more sliver” and “maybe two for the road,” they’re gone.

But that’s okay. They’re easy enough to make again tomorrow.

I first published this recipe for Lemon Pistachio Bars on my Southern food blog Butter and Baggage.