There’s something truly magical about the combination of tart raspberries and a rich buttery crumble. These Buttery Raspberry Crumble Bars are a delightful treat that perfectly balances sweetness and acidity, making them an ideal dessert for any occasion. Whether you’re hosting a summer gathering or simply indulging in a quiet afternoon snack, these bars are sure to satisfy. With fresh raspberries and a buttery crust, they are easy to make and even easier to love. Let’s dive into this scrumptious recipe!
What You’ll Love About This Recipe

- Flavor Explosion: The tartness of fresh raspberries paired with the sweetness of brown sugar creates a flavor profile that will have you coming back for seconds.
- Easy to Make: With simple steps and common ingredients, this recipe is perfect for bakers of all skill levels.
- Versatile: These bars can be enjoyed warm or cold, and are perfect for picnics, potlucks, or as an everyday dessert.
- Beautiful Presentation: Their rich color and crumble topping make these bars not only delicious but visually appealing.
What You’ll Gather
- 2 cups old-fashioned oats
- 1 1/2 cups all-purpose flour
- 1 cup brown sugar
- 1 teaspoon baking powder
- 1/2 teaspoon cinnamon
- 2 sticks (1 cup) cold salted butter, cubed
- 2 1/2 cups fresh raspberries
- 2-4 tablespoons brown sugar (to taste)
- 2 tablespoons all-purpose flour (for filling)
- 2 teaspoons vanilla extract
- 2 teaspoons lemon zest
- 1/2 cup raspberry jam
- 1 ripe but firm peach, thinly sliced
Kitchen Gear Checklist
- Mixing Bowls: For combining the crumble and filling ingredients.
- 9×13-inch Baking Pan: Ideal for baking and easy to cut into bars.
- Rubber Spatula: Perfect for mixing and spreading the raspberry filling evenly.
- Parchment Paper: For easy removal and cleanup.
- Measuring Cups and Spoons: Essential for precise ingredient measurements.
The Method for Buttery Raspberry Crumble Bars.

Step 1: Preheat and Prepare
Begin by preheating your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, allowing some overhang for easy removal later.
Step 2: Make the Crumble Mixture
In a large mixing bowl, combine the old-fashioned oats, all-purpose flour, brown sugar, baking powder, and cinnamon. Mix well. Next, add the cubed cold salted butter. Using a pastry cutter or your fingers, work the butter into the dry ingredients until the mixture resembles coarse crumbs.
Step 3: Reserve Some Crumble
Set aside approximately 1 ½ cups of the crumble mixture for the topping. Press the remaining crumble mixture firmly into the bottom of the prepared baking pan to form the base layer.
Step 4: Prepare the Raspberry Filling
In another bowl, combine the fresh raspberries, brown sugar (to taste), 2 tablespoons of flour, vanilla extract, and lemon zest. Gently fold to combine, taking care not to crush the berries too much.
Step 5: Assemble the Bars
Spread the raspberry mixture evenly over the pressed crumble base. Then, drop spoonfuls of raspberry jam over the filling to add extra flavor.
Step 6: Add the Topping
Sprinkle the reserved crumble mixture over the raspberry layer, ensuring it covers the filling evenly.
Step 7: Bake
Place the baking pan in the preheated oven and bake for 35-40 minutes, or until the top is golden and the filling is bubbly.
Step 8: Cool and Slice
Once baked, remove the pan from the oven and allow it to cool in the pan for at least 20 minutes. Then, use the parchment paper overhang to lift the bars out onto a cutting board. Allow to cool completely before slicing into squares.
Seasonal Ingredient Swaps

- Fruits: Swap raspberries with blueberries or strawberries for a different flavor profile.
- Jam: Use any berry jam you have on hand, such as blackberry or strawberry, for a unique twist.
- Spices: Consider adding a pinch of nutmeg for a warm spice flavor.
- Sweeteners: For a healthier alternative, use coconut sugar or maple syrup instead of brown sugar.
Cook’s Commentary
These Buttery Raspberry Crumble Bars are a fantastic way to showcase fresh fruit. The key to achieving the perfect balance in flavor is to taste your raspberry mixture before baking. Depending on the sweetness of your raspberries, you may want to adjust the amount of brown sugar you add. Also, don’t skip the lemon zest—it brightens the flavors and elevates the overall taste of the bars. These are best enjoyed fresh, but they can be stored and still taste delicious days later.
Storing Tips & Timelines
To store your Buttery Raspberry Crumble Bars, keep them in an airtight container at room temperature for up to 2 days. If you need to store them longer, refrigerate for up to a week. They can also be frozen for up to 3 months. To reheat, simply warm them in the oven at a low temperature or enjoy them cold straight from the fridge.
Reader Q&A
Can I use frozen raspberries instead of fresh ones?
Yes, you can use frozen raspberries! Just make sure to thaw and drain any excess liquid before adding them to the filling to prevent a soggy crust.
Can I make these bars gluten-free?
Absolutely! Substitute the all-purpose flour with a gluten-free flour blend and ensure your oats are certified gluten-free.
How do I know when the bars are done baking?
The bars are done when the top is golden brown and the filling is bubbly. A toothpick inserted into the center should come out clean or with a few moist crumbs.
Can I add nuts to the crumble topping?
Yes! Adding chopped nuts like almonds or pecans to the crumble topping can add a delightful crunch and flavor.
Serve with These
- Vanilla Ice Cream – A classic pairing that complements the tartness of the raspberries.
- Fresh Whipped Cream – Light and fluffy, perfect for topping your bars.
- Herbal Tea – A soothing drink to enjoy alongside your sweet treat.
- Greek Yogurt – Adds a creamy contrast to the sweet bars.
Serve & Enjoy
Once your Buttery Raspberry Crumble Bars are sliced and plated, gather your friends and family to enjoy this delightful treat together. Each bite is a burst of flavor, and the combination of buttery crumble and fresh raspberries will leave everyone reaching for seconds. These bars are perfect for any occasion, whether it’s a backyard barbecue, a cozy night in, or a festive gathering. Enjoy the sweet moments and the joy of sharing delicious food!
The art of baking is about more than just following a recipe; it’s about creating memories and savoring the little things in life. With these Buttery Raspberry Crumble Bars, you’ll create not only a delicious dessert but also a cherished experience for yourself and those you love. Happy baking!

Buttery Raspberry Crumble Bars.
Ingredients
For the Crumble:
- 2 cups old-fashioned oats
- 1 1/2 cups all-purpose flour
- 1 cup brown sugar
- 1 teaspoon baking powder
- 1/2 teaspoon cinnamon
- 2 sticks (1 cup) cold salted butter cubed
For the Filling:
- 2 1/2 cups fresh raspberries
- 2-4 tablespoons brown sugar (to taste)
- 2 tablespoons all-purpose flour (for filling)
- 2 teaspoons vanilla extract
- 2 teaspoons lemon zest
- 1/2 cup raspberry jam
- 1 ripe but firm peach thinly sliced
Instructions
Directions
- Step 1: Preheat your oven to 350°F (175°C). Line a 9x13-inch baking pan with parchment paper, allowing some overhang for easy removal later.
- Step 2: In a large mixing bowl, combine the old-fashioned oats, all-purpose flour, brown sugar, baking powder, and cinnamon. Mix well. Next, add the cubed cold salted butter. Using a pastry cutter or your fingers, work the butter into the dry ingredients until the mixture resembles coarse crumbs.
- Step 3: Set aside approximately 1 ½ cups of the crumble mixture for the topping. Press the remaining crumble mixture firmly into the bottom of the prepared baking pan to form the base layer.
- Step 4: In another bowl, combine the fresh raspberries, brown sugar (to taste), 2 tablespoons of flour, vanilla extract, and lemon zest. Gently fold to combine, taking care not to crush the berries too much.
- Step 5: Spread the raspberry mixture evenly over the pressed crumble base. Then, drop spoonfuls of raspberry jam over the filling to add extra flavor.
- Step 6: Sprinkle the reserved crumble mixture over the raspberry layer, ensuring it covers the filling evenly.
- Step 7: Place the baking pan in the preheated oven and bake for 35-40 minutes, or until the top is golden and the filling is bubbly.
- Step 8: Once baked, remove the pan from the oven and allow it to cool in the pan for at least 20 minutes. Then, use the parchment paper overhang to lift the bars out onto a cutting board. Allow to cool completely before slicing into squares.
Equipment
- Mixing Bowls
- 9x13-inch Baking Pan
- Rubber Spatula
- Parchment Paper
- Measuring cups and spoons
Notes
- For a different flavor, swap raspberries with blueberries or strawberries.
- Use any berry jam you have on hand for a unique twist.
- Store in an airtight container at room temperature for up to 2 days.
