Raspberry Oatmeal Crumble Bars
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Who can resist the combination of fresh raspberries and a crunchy oat topping? Not me, and I bet not you either once you try these Raspberry Oatmeal Crumble Bars, a simple yet irresistible treat that’s sure to be a hit at any gathering.
Easy Raspberry Oatmeal Crumble Bars
I absolutely adore starting my day with these Raspberry Oatmeal Crumble Bars – they’re a dreamy breakfast on-the-go. There’s something about the combination of tart raspberries and the comforting, buttery oat crumble that just sets the right tone for the day. Plus, they’re a breeze to whip up, making them a perfect, no-stress treat for busy mornings or when you’re craving something sweet and satisfying without the hassle.
Pro Tip
Use chilled, diced butter in the crumble. This little trick makes all the difference – it helps create those perfectly golden, deliciously crumbly tops that contrast so beautifully with the juicy raspberry layer.
- Old-Fashioned Rolled Oats: I recommend rolled, old fashioned, or whole oats.
- All-Purpose Flour: For a gluten-free version, you can use a gluten-free flour blend.
- Light Brown Sugar: This adds sweetness and a hint of molasses flavor to the crumble. Dark brown sugar works too for a deeper flavor.
- Unsalted Butter: It’s crucial for the perfect crumbly topping. If you only have salted butter, just omit the extra salt in the recipe.
- Baking Soda: It gives a little lift to the crumble.
- Salt: It balances the sweetness and enhances the flavors. If you’re using salted butter, you might want to skip this.
- Fresh Raspberries: Feel free to swap in other berries like blueberries or blackberries if you prefer.
- Granulated Sugar: If you like, you can adjust the amount to suit your taste.
- Cornstarch: To thicken the raspberry filling. A substitute like arrowroot powder can work in a pinch.
- Lemon Juice: Freshly squeezed is best for brightening up the raspberry flavor. In a bind, bottled lemon juice can do the trick.
Start by firing up your oven to 350°F (175°C). Then, take a 9-inch square baking pan and either grease it lightly or line it with parchment paper.
Grab a large bowl and mix together the oats, flour, brown sugar, baking soda, and salt. Next, incorporate the diced butter. Using either your hands or a pastry cutter, blend the mixture thoroughly until it achieves a coarse, crumbly consistency.
In a separate bowl, gently mix the raspberries with sugar, cornstarch, and lemon juice. Feel free to swap with any other berries you like, like blueberries or blackberries.
Take about two-thirds of your oat mixture and press it firmly into the bottom of your prepared pan. This forms the base of your bars. Now, evenly spread the raspberry filling over this base. Finally, sprinkle the remaining oat mixture over the top.
Pop the pan into the oven and let it bake for about 30 minutes. You’re looking for a golden-brown top and bubbly raspberry goodness.
Let the bars cool completely in the pan. This waiting time lets them set properly. Once they’re cooled, lift them out using the parchment paper, and cut them into bars.
Frequently Asked Questions
Can I use frozen raspberries instead of fresh?
Yes, you can use frozen raspberries. There’s no need to thaw them first; just use them directly from the freezer. Keep in mind that frozen raspberries might release more juice, so you might want to add an extra teaspoon of cornstarch to the filling to help it set.
Can I make this recipe gluten-free?
Yes, easily! Substitute the all-purpose flour with your favorite gluten-free flour blend and ensure that your oats are certified gluten-free.
Is there a way to reduce the sugar in this recipe?
You can reduce the granulated sugar in the raspberry filling if your raspberries are particularly sweet or if you prefer a less sweet dessert. As for the crumble, reducing the brown sugar might affect the texture, but it’s doable if you’re looking for a less sweet option.
Can I add nuts to the crumble for extra crunch?
Absolutely! Adding chopped nuts like almonds, walnuts, or pecans to the oat mixture can add a lovely crunch and extra flavor. Just mix them in with the oats and flour before adding the butter.
Expert Tips
- Use Cold Butter: Always use cold, diced butter for the crumble. It helps achieve that perfectly flaky and crumbly texture. Avoid melting the butter as it will change the consistency of the crumble.
- Don’t Overmix the Crumble: When combining the crumble ingredients, mix just until the mixture resembles coarse crumbs. Overmixing can lead to a denser, less crumbly topping.
- Evenly Press the Base: Ensure the base oat mixture is pressed evenly into the pan. An uneven base can result in inconsistently cooked bars.
- Let Them Cool Completely: Resist the temptation to cut the bars immediately after baking. Letting them cool completely in the pan allows them to set properly and makes for cleaner cuts.
- Adjust the Sweetness of Filling: Taste your raspberries before adding sugar. If they’re very sweet, you might want to reduce the added sugar in the filling.
Storage
Store the bars in an airtight container at room temperature for up to 2 days or in the refrigerator for up to 5 days. They also freeze well, so you can keep them in the freezer for up to 3 months. Just make sure to thaw them at room temperature before enjoying.
More Delicious Desserts
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Raspberry Oatmeal Crumble Bars
Ingredients
For the Crumble
- 1 cup old-fashioned rolled oats
- ¾ cup all-purpose flour
- ½ cup light brown sugar (packed)
- ½ cup unsalted butter (chilled and diced)
- ¼ teaspoon baking soda
- ¼ teaspoon salt
For the Raspberry Filling
- 2 cups fresh raspberries
- ¼ cup granulated sugar
- 2 teaspoons cornstarch
- 1 tablespoon lemon juice (freshly squeezed)
Before You Begin! If you make this, please leave a review and rating letting us know how you liked this recipe! This helps our business thrive & continue providing free recipes.
Instructions
- Preheat your oven to 350°F (175°C). Lightly grease a 9-inch square baking pan or line it with parchment paper for easy lifting.
- In a large mixing bowl, combine the oats, flour, brown sugar, baking soda, and salt. Add the chilled, diced butter and use your fingers or a pastry cutter to work the butter into the oat mixture until it resembles coarse crumbs.
- In another bowl, gently mix the raspberries, sugar, cornstarch, and lemon juice until the raspberries are well coated.
- Press about two-thirds of the oat mixture into the bottom of your prepared pan to form a firm base. Evenly spread the raspberry mixture over this base, then sprinkle the remaining oat mixture on top.
- Pop it in the oven and bake for about 30 minutes, or until the top is golden brown and the raspberry filling is bubbly. Let it cool completely in the pan.
- Once cooled, lift out of the pan using the parchment paper (if used), and cut into bars. Delight in the rich raspberry flavor with the earthy texture of oats!
Equipment
Notes
- If you’re using frozen raspberries, there’s no need to thaw them first, but consider adding a bit more cornstarch to the filling to account for extra moisture.
- These bars store well in an airtight container at room temperature for up to 2 days or in the fridge for up to 5 days. They’re also freezer-friendly for up to 3 months.
- Feel free to experiment with other berries like blueberries or blackberries for a different twist.
- For a gluten-free option, swap the all-purpose flour with a gluten-free blend and use gluten-free oats.
- Add a handful of chopped nuts to the crumble mixture for an extra crunch if you like.
Nutrition Information
Notice: Nutrition is auto-calculated for your convenience. Where relevant, we recommend using your own nutrition calculations.
