Easy Raspberry Oatmeal Crumble Bars | Better Than Takeout

Easy Raspberry Oatmeal Crumble Bars are the perfect better-than-takeout dessert! After making these many times, I’ve discovered the trick to a crispy topping and a juicy filling. Jump to the recipe or keep reading for my best tips. If you love recipes like this, you’ll also enjoy Garlic Parmesan Focaccia – Quick, Savory & Soft Inside and The Best Baked Chicken Bacon Ranch Tacos | Cheesy & Oven-Crispy.

Why This Easy Raspberry Oatmeal Crumble Bars | Better Than Takeout Is Pure Comfort
- Crispy oat topping with a hint of cinnamon
- Juicy raspberry filling that's not too tart
- Easy to make with simple ingredients
- Perfect for dessert or a quick breakfast on the go
What You'll Need for Easy Raspberry Oatmeal Crumble Bars | Better Than Takeout
Choosing the right ingredients makes a big difference, but this recipe is forgiving enough to work with what you have.
- Old-fashioned oats
- All-purpose flour
- Brown sugar
- Melted butter
- Raspberries
- Granulated sugar
- Cornstarch
- Cinnamon
- Vanilla extract
- Salt
- Optional: Powdered sugar for dusting
- Optional: Vanilla ice cream or whipped cream for serving

📝 Ingredient Notes
- Old-fashioned oats: Do not use quick-cooking oats as they can make the bars too crumbly.
🛒 Tools & Equipment I Recommend
- Food processor — Ensures even crumbs for the topping → See on Amazon
- Silicone baking mat — Prevents the bars from sticking to the pan → See on Amazon

How to Make Easy Raspberry Oatmeal Crumble Bars | Better Than Takeout
- Prepare the topping: In a food processor, combine oats, flour, brown sugar, cinnamon, and salt. Pulse while adding melted butter until crumbly.
- Prepare the filling: In a saucepan, combine raspberries, granulated sugar, cornstarch, and vanilla extract. Cook over medium heat until thickened.
- Assemble the bars: Press half of the topping into the bottom of a greased 8×8-inch pan. Spread the filling over the topping, then crumble the remaining topping over the filling.
- Bake: Bake at 375°F (190°C) for 30-35 minutes or until golden brown. Let cool before slicing.
Cook's Tips for Perfect Easy Raspberry Oatmeal Crumble Bars | Better Than Takeout
- Common mistake and fix: Avoid overmixing the topping to prevent it from becoming too crumbly. If this happens, add a tablespoon of water to help it stick together.
- Pro tip: For a more even topping, use a food processor to create even crumbs.
- Pro tip: To prevent the bars from sticking to the pan, line it with parchment paper or use a silicone baking mat.
Storing & Reheating Easy Raspberry Oatmeal Crumble Bars | Better Than Takeout
Short-Term Storage
Store in an airtight container in the fridge. Store in an airtight container in the fridge for up to 5 days. Make-ahead tip: The topping can be made ahead of time and stored in the fridge for up to 3 days.
Freezing Easy Raspberry Oatmeal Crumble Bars | Better Than Takeout
Freeze for up to 3 months. Thaw overnight in the fridge before serving.
How to Reheat Without Drying It Out
Oven: Reheat in the oven at 350°F (180°C) for 10-15 minutes. Microwave: Reheat in the microwave for 20-30 seconds.
Recipe Notes
- Chef tip: For a more intense raspberry flavor, use fresh raspberries if in season.
- Best substitution: You can substitute the raspberries with blueberries or strawberries for a different flavor.
- Make-ahead: These bars can be made ahead of time and stored in the fridge for up to 5 days.
- Scaling: This recipe can be doubled and baked in a 9×13-inch pan for a larger batch.
- Troubleshooting: If the topping is too crumbly, add a tablespoon of water to help it stick together.
Want to level up this recipe?
High-quality raspberries — Ensure a juicy, not-too-tart filling → Check price on Amazon
Easy Raspberry Oatmeal Crumble Bars | Better Than Takeout

Ingredients
Main Ingredients
- Old-fashioned oats
- All-purpose flour
- Brown sugar
- Melted butter
- Raspberries
- Granulated sugar
- Cornstarch
Seasonings
- Cinnamon
- Vanilla extract
- Salt
Optional Toppings
- Powdered sugar for dusting
- Vanilla ice cream or whipped cream for serving
Instructions
- Prepare the topping: In a food processor, combine oats, flour, brown sugar, cinnamon, and salt. Pulse while adding melted butter until crumbly.
- Prepare the filling: In a saucepan, combine raspberries, granulated sugar, cornstarch, and vanilla extract. Cook over medium heat until thickened.
- Assemble the bars: Press half of the topping into the bottom of a greased 8×8-inch pan. Spread the filling over the topping, then crumble the remaining topping over the filling.
- Bake: Bake at 375°F (190°C) for 30-35 minutes or until golden brown. Let cool before slicing.
Notes
- Chef tip: For a more intense raspberry flavor, use fresh raspberries if in season.
- Best substitution: You can substitute the raspberries with blueberries or strawberries for a different flavor.
- Make-ahead: These bars can be made ahead of time and stored in the fridge for up to 5 days.
- Scaling: This recipe can be doubled and baked in a 9×13-inch pan for a larger batch.
- Troubleshooting: If the topping is too crumbly, add a tablespoon of water to help it stick together.
Storage
- Fridge: Store in an airtight container in the fridge for up to 5 days.
- Freezer: Freeze for up to 3 months. Thaw overnight in the fridge before serving.
- Oven reheat: Reheat in the oven at 350°F (180°C) for 10-15 minutes.
- Microwave reheat: Reheat in the microwave for 20-30 seconds.
- Make ahead: The topping can be made ahead of time and stored in the fridge for up to 3 days.
Nutrition Per Serving
- Calories: 270
- Protein: 3g
- Fat: 11g
- Carbs: 42g
- Fiber: 4g
- Sugar: 18g
- Sodium: 120mg
- Cholesterol: 25mg
- Sat. Fat: 6g
Nutritional values are estimates only. Actual values may vary by brand and portion size.
Easy Raspberry Oatmeal Crumble Bars | Better Than Takeout FAQs
Yes, these bars can be made ahead of time and stored in the fridge for up to 5 days or frozen for up to 3 months.
This could be due to overbaking. Keep an eye on the topping and pull them out when they're golden brown.
No, these bars are best baked in the oven. The air fryer may not cook them evenly.
You can substitute the raspberries with blueberries or strawberries for a different flavor.
Yes, you can use frozen raspberries. Thaw them before using and adjust the cooking time if needed.
A Warm Final Note
I can’t wait for you to try Easy Raspberry Oatmeal Crumble Bars | Better Than Takeout and see how effortlessly it comes together. When you make it, pop back here and leave a rating or share how it turned out — I love hearing from you!






