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If you love raspberry recipes that are simple and bursting with flavor, these Easy Raspberry Oatmeal Crumble Bars will be your new go-to dessert. They feature a buttery, oat-packed crust that doubles as the crumbly topping, sandwiching a layer of sweet-tart raspberry filling. The recipe comes together quickly with pantry staples and fresh raspberries, making it ideal for summer gatherings or a cozy treat any time of year. In less than an hour, you can enjoy a homemade bar that tastes like pure comfort wrapped in a crumbly bite. Get ready to fall in love with one of the easiest raspberry recipes you will ever make.
Desserts
Easy
Easy Raspberry Oatmeal Crumble Bars
These easy raspberry oatmeal crumble bars combine a buttery oat crust, a sweet-tart raspberry filling, and a crumbly topping. Perfect for any occasion!
Ingredients
4
💡 Chef Tip
Use very cold butter for the crumble to achieve the flakiest, most tender topping. If the mixture becomes too warm, chill it for a few minutes before pressing.
Nutrition Facts
Per Serving
Calories
290 kcal
Protein
4 g
Carbs
42 g
Fat
12 g
Fiber
5 g
Sugar
18 g
* Percent Daily Values are based on a 2,000 calorie diet.
Instructions
1
Preheat oven to 350°F (175°C) and line an 8x8-inch baking pan with parchment paper.
2
In a mixing bowl, combine rolled oats, flour, brown sugar, and salt.
3
Add the cold cubed butter and cut it into the dry ingredients using a pastry cutter or your fingertips until the mixture resembles coarse crumbs.
4
Press about two-thirds of the oat mixture firmly into the bottom of the prepared pan to form an even crust.
5
Bake the crust for 10 minutes, then remove from the oven and let cool slightly.
6
In a separate bowl, gently toss the raspberries with granulated sugar, cornstarch, and lemon juice.
7
Spread the raspberry filling evenly over the pre-baked crust.
8
Sprinkle the remaining oat crumble mixture over the raspberry layer.
9
Return the pan to the oven and bake for 25-30 minutes, until the topping is golden brown and the filling is bubbly.
10
Let the bars cool completely in the pan before lifting them out using the parchment paper.
11
Slice into 4 large bars and serve.
Frequently Asked Questions
Yes, you can use frozen raspberries without thawing them. Toss them directly with the sugar, cornstarch, and lemon juice, and increase the final baking time by about 5 minutes to account for the extra moisture.
A pastry cutter works best, but you can also use two forks or your fingertips. Work quickly so the butter stays cold—this is the key to a crumbly, flaky texture.
The topping should be golden brown and the raspberry filling should be visibly bubbling around the edges. A slight jiggle in the center is normal; it will set as it cools.
Absolutely. Blueberries, blackberries, or diced peaches work beautifully in this recipe. Adjust the sugar slightly depending on the sweetness of the fruit.
Yes, once cooled completely, wrap individual bars tightly in plastic wrap and then foil. Freeze for up to 2 months. Thaw at room temperature or gently reheat in the oven.
Ingredients for easy raspberry oatmeal crumble bars laid out on a marble countertop.
Why You’ll Love This Recipe
✓ Easy to make
✓ Fresh raspberry flavor
✓ Perfectly crumbly texture
✓ Uses simple pantry ingredients
✓ Great for summer and year-round
Equipment Needed
🧰 8×8-inch baking pan
🧰 Parchment paper
🧰 Mixing bowls
🧰 Pastry cutter or fork
🧰 Measuring cups and spoons
🧰 Spatula
Recipe Notes
- Fresh raspberries work best, but thawed frozen raspberries can be used; the filling may be slightly juicier.
- For a more pronounced lemon flavor, add 1/2 teaspoon of lemon zest to the raspberry mixture.
🧊 Storage Tips
Store the bars in an airtight container at room temperature for up to 3 days, or refrigerate for up to 1 week. Bring to room temperature before serving.
⏰ Make Ahead Tips
You can prepare the crumble mixture and raspberry filling separately a day in advance. Store the crumble in the fridge and assemble just before baking.
🍴 Kitchen Picks
Helpful tools that make this recipe easier and more enjoyable.
BLACK+DECKER Crisp N Bake Air Fry Countertop Oven
Versatile for baking and cooking various recipes, including this raspberry crumble bars, and requires less preheating time.
A delicious raspberry oatmeal crumble bar served on a white plate, perfect for dessert.
📋 Recipe Summary
⏱️
50 Min
50 Min
👨🍳
Easy
Easy
🍽️
4 Servings
4 Servings
🔥
290 kcal
290 kcal
- ✓ Easy to make
- ✓ Fresh raspberry flavor
- ✓ Perfectly crumbly texture
- ✓ Uses simple pantry ingredients
- ✓ Great for summer and year-round
We hope this recipe joins your collection of favorite raspberry recipes. The balance of buttery oats and juicy raspberries creates a dessert that feels both rustic and indulgent. Whether you serve them at a picnic or enjoy them with coffee, these crumble bars are sure to be a hit. Feel free to experiment with other berries too, but don’t miss out on this delightful foundation for future raspberry recipes.
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