I’ve been making peach crumble bars for years, but this version with the lemon shortbread base just hits different. The shortbread is buttery and has this bright lemon note that cuts through the sweetness of the peaches so well.
What really makes these homemade peach bars special is how the lemon zest gets rubbed into the sugar for the shortbread. It’s a small step, but it releases all those fragrant oils, making the shortbread taste so much more vibrant than if you just mixed it in. And then you have those warm, juicy peaches on top, bubbling through the crisp, brown sugar crumble.
I honestly think these fresh peach dessert bars are one of the best ways to use up all those ripe peaches when they’re in season. They’re super straightforward to put together, and while it’s tempting to dig in right away, letting them cool completely is key for clean slices (I may have learned this the hard way a few times).
The Perfect Peach Crumble Bars
These peach crumble bars start with a buttery lemon shortbread base that’s pressed into the pan. It’s got a lovely snap to it, and that hint of lemon makes all the difference.
Next up is the juicy peach filling, made with fresh peaches, a bit of sugar, cornstarch to thicken things up, and a splash of lemon juice and vanilla. We want them ripe but not mushy, so they hold their shape a bit.
Then there’s the crumble topping, which is essentially more of that shortbread dough mixed with brown sugar. It bakes up golden and crunchy, letting some of the peach filling peek through.
Once everything is assembled, these lemon shortbread peach bars bake until the topping is golden and the peach juices are bubbling. The whole house smells amazing while they’re in the oven.
Ingredients
- Granulated sugar
- Lemon zest
- Unsalted butter
- Vanilla extract
- All-purpose flour
- Salt
- Cinnamon
- Brown sugar
- Fresh peaches
- Cornstarch
- Lemon juice
*These are the main ingredients. The full list of ingredients and measurements can be found at the bottom of this post!*
Equipment
- Kitchen scale (I like to weigh out most of my ingredients for accuracy, I also think it’s more efficient when measuring things out over measuring cups!)
- Large and small mixing bowls
- Measuring cups and spoons
- Whisk
- Rubber spatula
- 9×9 inch (23×23 cm) square baking pan
- Parchment paper
- Wire cooling rack
Tips for Making Peach Crumble Bars
Rub the lemon zest into the sugar – don’t skip this. For your peach crumble bars, it’s a simple trick that brings out so much more lemon flavour in the shortbread base. Just use your fingertips and rub them together until the sugar smells really fragrant.
Don’t overmix the shortbread dough – once it starts clumping, gently knead it just until it comes together into a fairly crumbly dough. Overmixing can make the crust tough, and we want a tender, buttery base.
Choose ripe but firm peaches – make sure your peaches are ripe enough to be flavourful but still firm enough to hold their shape when sliced. If they’re too soft, the filling can get watery.
Cool completely before slicing – I know it’s hard to wait, but allowing the bars to cool to room temperature lets the peach filling set properly and the shortbread firm up. This means you’ll get clean, neat slices.
Evenly press the base – when making this summer peach recipe, ensure the shortbread base is pressed into an even layer in the pan. This helps it bake uniformly and provides a consistent foundation for the filling.
Frequently Asked Questions
Do I have to peel the peaches for these bars?
No, you don’t have to peel them. The skins soften quite a bit during baking and add a bit of rustic texture and colour. If you prefer a smoother filling, the instructions include an easy method for peeling them.
Can I use frozen peaches instead of fresh?
Yes, you can use frozen peaches. Thaw them first and drain any excess liquid before tossing them with the sugar, cornstarch, and lemon juice. This helps prevent the filling from becoming too watery.
How do I know when the peach crumble bars are done baking?
Look for a light golden-brown crumble topping and visible bubbling from the peach filling around the edges and through the topping. The baking time is a guide, but ovens can vary, so keep an eye on them.
My crumble topping didn’t get as crisp as I wanted. What happened?
This can happen if the oven wasn’t quite hot enough, or if there was too much moisture in the peaches. Make sure your oven is preheated properly, and if using very juicy peaches, you might add a tiny bit more cornstarch to the filling.
Hope you make these! They’re such a good way to enjoy fresh peaches. If you try these peach crumble bars, please tag @theflournook on social media and leave a review below. You can save this recipe for later too by using the pin button on the recipe card, or any of the photos above.
Happy baking!
For more bar recipes, check out these:
Peach Crumble Bars
- Total Time: 1 hour 30 minutes
- Yield: 16 bars 1x
Description
Buttery lemon shortbread meets juicy peach filling and a crisp crumble in these easy peach crumble bars. A simple homemade dessert that’s ready in just over an hour.
Ingredients
Lemon Shortbread (Base & Crumble)
- 1/2 cup (100 g) granulated sugar
- 2 tbsp (4 g) lemon zest
- 1 1/4 sticks (140 g) unsalted butter, softened
- 2 tsp (10 ml) vanilla extract
- 2 1/2 cups (300 g) all-purpose flour
- 1/2 tsp (3 g) salt
- 1/2 tsp (1 g) ground cinnamon
- 2 tbsp (25 g) light brown sugar, packed
Peach Filling
- 5 medium fresh peaches, ripe but firm (about 1.5 kg / 3.3 lb)
- 1/4 cup (50 g) granulated sugar
- 1 tsp (2 g) ground cinnamon
- 2 tbsp (16 g) cornstarch
- 1 tbsp (15 ml) lemon juice, freshly squeezed
- 2 tsp (10 ml) vanilla extract
Instructions
Prepare the Peaches
- Bring a large pot of water to a boil. Prepare an ice water bath in a large bowl.
- Score a shallow “X” on the bottom of each peach. Carefully place peaches into the boiling water for 30-60 seconds, then transfer them immediately to the ice water bath using a slotted spoon.
- Allow peaches to cool for a couple of minutes, then peel off the loosened skin, starting from the “X”. Cut peaches into 1/2 inch (1.25 cm) thick wedges. Set aside.
Make the Lemon Shortbread
- Preheat the oven to 375°F (190°C). Line a 9×9 inch (23×23 cm) square baking pan with parchment paper, leaving an overhang on two sides.
- In a large bowl, combine the granulated sugar and lemon zest. Use your fingertips to rub the zest into the sugar until fragrant.
- Add the softened butter and vanilla extract to the sugar mixture. Mix well with a wooden spoon or rubber spatula until combined and creamy.
- In a separate bowl, whisk together the all-purpose flour, 1/2 tsp cinnamon, and salt.
- Add the dry ingredients to the butter-sugar mixture. Mix until the dough starts clumping together, then gently knead until you have a fairly crumbly cookie dough.
- Press about two-thirds of the shortbread dough evenly into the bottom of the prepared baking pan, smoothing it into a compact layer.
Prepare the Peach Filling
- In a large bowl, combine the peach wedges, 1/4 cup granulated sugar, 1 tsp cinnamon, cornstarch, lemon juice, and vanilla extract. Toss gently to combine, ensuring peaches are evenly coated.
Assemble & Bake
- Arrange the peach filling in an even layer over the shortbread base.
- Add the brown sugar to the remaining one-third of the shortbread crumble mixture. Mix lightly. Sprinkle the brown sugar crumble mixture evenly over the peach filling, allowing some of the peaches to peek through.
- Bake for 50-55 minutes, or until the crumble topping is light golden brown and the peach filling juices are bubbling through.
- Allow the bars to cool completely to room temperature in the pan before removing them using the parchment paper overhang. Once fully cooled, slice into 16 individual portions.
Notes
Don’t skip rubbing the lemon zest into the sugar for the base! It’s a little trick that really helps release those essential oils and infuses the whole base with bright lemon flavour.
These bars are absolutely divine served warm with a scoop of vanilla bean ice cream, but they’re also fantastic chilled for a refreshing treat. They keep well in an airtight container at room temperature for up to 3 days, or in the fridge for up to a week!
If fresh peaches aren’t in season, you can totally use frozen sliced peaches! Just make sure to thaw them completely and drain any excess liquid before tossing them with the other filling ingredients.
- Prep Time: 35 mins
- Cook Time: 55 mins
- Category: Bars
- Method: Baking
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