These Raspberry Lemon Crumble Bars taste like sunshine in dessert form. Buttery crumbs, a fresh raspberry layer, and a hint of lemon come together with almost no fuss. They’re great for bake sales, brunch, or a simple weekend treat.
If lemon-berry bakes are your thing, you might also love this soft, bright Lemon Blueberry Bundt Cake or the tender, bakery-style Strawberry Cream Cheese Scones.
Raspberry Lemon Crumble Bars - Bright, Buttery, and Easy
Ingredients
Method
- Preheat the oven to 350°F (175°C). Line a 9x13-inch pan with parchment, leaving overhang for easy lifting.
- Make the crust/crumble: In a large bowl, whisk melted butter, granulated sugar, brown sugar, vanilla, and lemon zest until combined.
- In a separate bowl, whisk flour, baking powder, and salt. Add dry ingredients to the butter mixture and stir until large crumbs form.It should look sandy but hold when pressed.
- Press about two-thirds of the mixture firmly into the prepared pan to form an even crust.
- Stir the raspberry layer: Toss raspberries with sugar, cornstarch, and lemon juice until coated. Spread evenly over the crust.
- Crumble the remaining dough over the raspberries, leaving some gaps so the fruit can bubble through.
- Bake for 35–42 minutes, or until the top is golden and the berries are bubbling at the edges.
- Cool in the pan for at least 2 hours (longer is better) before lifting out and slicing into bars. Cooling helps the center set.
What Makes This Special
- Quick prep: One dough becomes both the crust and the crumble topping.
- Fresh, bright flavor: Lemon zest lifts the sweet-tart raspberries.
- Flexible: Use fresh or frozen raspberries, and adjust sweetness to taste.
- Great texture: Soft jammy center, crisp edges, and a buttery crumb on top.
Ingredients
- For the crust and crumble:
- 1 cup (2 sticks) unsalted butter, melted and slightly cooled
- 3/4 cup granulated sugar
- 1/2 cup light brown sugar, packed
- 2 1/2 cups all-purpose flour
- 1/2 teaspoon baking powder
- 1/2 teaspoon fine salt
- Zest of 1 large lemon
- 1 teaspoon vanilla extract
- For the raspberry layer:
- 3 cups raspberries (fresh or frozen; if frozen, do not thaw)
- 1/3 to 1/2 cup granulated sugar, to taste
- 1 tablespoon cornstarch
- 1 tablespoon fresh lemon juice
Instructions
- Preheat the oven to 350°F (175°C). Line a 9×13-inch pan with parchment, leaving overhang for easy lifting.
- Make the crust/crumble: In a large bowl, whisk melted butter, granulated sugar, brown sugar, vanilla, and lemon zest until combined.
- In a separate bowl, whisk flour, baking powder, and salt. Add dry ingredients to the butter mixture and stir until large crumbs form.
It should look sandy but hold when pressed.
- Press about two-thirds of the mixture firmly into the prepared pan to form an even crust.
- Stir the raspberry layer: Toss raspberries with sugar, cornstarch, and lemon juice until coated. Spread evenly over the crust.
- Crumble the remaining dough over the raspberries, leaving some gaps so the fruit can bubble through.
- Bake for 35–42 minutes, or until the top is golden and the berries are bubbling at the edges.
- Cool in the pan for at least 2 hours (longer is better) before lifting out and slicing into bars. Cooling helps the center set.
Keeping It Fresh
- Room temperature: Store in an airtight container for up to 2 days.
- Refrigerator: Keeps 4–5 days; the bars firm up nicely and cut cleanly.
- Freezer: Wrap bars individually and freeze up to 2 months.
Thaw at room temp or rewarm briefly.
Benefits of This Recipe
- Beginner-friendly: No mixer needed and no complicated steps.
- Make-ahead friendly: Flavors deepen by the next day.
- Shareable: A 9×13 pan makes plenty for gatherings, brunch spreads, or potlucks.
- Customizable sweetness: Adjust sugar based on berry tartness.
What Not to Do
- Don’t skip the cornstarch: It thickens the berry juices and prevents soggy bars.
- Don’t cut while hot: Letting the bars cool ensures neat slices and a set center.
- Don’t overbake: Pull them when the top is golden; the center sets as it cools.
- Don’t press the topping: Keep the crumble loose for a crisp finish.
Recipe Variations
- Swirl in jam: Add 1/4 cup raspberry or lemon curd over the fruit for extra gloss and flavor.
- Almond touch: Mix 1/2 teaspoon almond extract into the dough or sprinkle sliced almonds on top.
- Oat crumble: Swap 1/2 cup flour for rolled oats to add texture and a rustic look.
- Mixed berries: Combine raspberries with blueberries or strawberries. For more berry ideas, try this soft, juicy Blueberry Brunch Bundt Cake or the cozy Baked Strawberries And Cream French Toast.
- Lemon lovers: Drizzle cooled bars with a simple lemon glaze (powdered sugar + lemon juice). If you crave more lemon, you’ll love these bright Lemon Crinkle Cookies or super-soft Lemon Brownies.
FAQ
Can I use frozen raspberries?
Yes.
Use them straight from the freezer and bump the bake time by a few minutes if needed. Don’t thaw first or the filling may get watery.
How do I know when the bars are done?
The topping should be golden and the fruit should bubble around the edges. If the center still looks pale and dry, give it a few more minutes.
Can I make these gluten-free?
Use a good 1:1 gluten-free all-purpose flour blend with xanthan gum.
Check that your baking powder is gluten-free as well.
What if my raspberries are very tart?
Use the higher end of the sugar range and taste a berry-sugar mix before adding cornstarch. You can also add an extra teaspoon of lemon juice for balance if they’re very sweet.
Do these travel well?
Yes. Chill the pan first so the bars set firmly, then slice and pack in a snug container with parchment between layers.
Wrapping Up
Raspberry Lemon Crumble Bars are everything you want in a simple bake: bright flavor, buttery crunch, and easy steps.
They’re perfect for brunch tables, picnics, and sweet afternoon snacks. For more crowd-pleasing bakes with fruit, check out this festive Spring Berry Cream Cheese Easter Fruit Pizza or the bright, tender Lemon Blueberry Mascarpone Cake. Enjoy every zesty, jammy bite!
