Chewy Raspberry Oat Bars with Homemade Jam Filling

These raspberry oat bars combine a buttery oat crust, a bright sweet-and-tart raspberry filling, and a crumbly oat topping. They’re easy to make and taste like they came from a bakery.

Four raspberry oat bars stacked on top of each other.
A raspberry bar on a white plate.

Made with simple pantry ingredients, these raspberry oat bars are a comforting dessert that’s perfect on its own or served warm with ice cream. The recipe is straightforward, making it a great choice for beginner bakers.

Ingredients

Below are the ingredients for the crust, topping, and filling, with a few substitution suggestions.

For the Oat Crust & Topping:

  • 1 ½ cups all-purpose flour – The base for the crust and crumble. A 1:1 gluten-free flour blend can be used as a substitute.
  • ½ cup old fashioned rolled oats – Adds texture and chew; instant oats can be substituted but will yield a softer texture.
  • ½ cup granulated sugar – Sweetens the crust and topping.
  • ⅛ teaspoon salt – Balances sweetness; omit if using salted butter.
  • 8 tablespoons cold unsalted butter – Cut into cubes; cold butter creates a flaky, crumbly texture.

For the Raspberry Filling:

  • 2 large eggs – Help bind the filling and create a custard-like consistency.
  • 1 cup granulated sugar – Sweetens the filling and offsets the raspberries’ tartness.
  • ½ cup nonfat Greek yogurt – Adds creaminess and a slight tang; sour cream works too.
  • 1 teaspoon almond extract – Adds a warm, nutty note; vanilla extract is an easy alternative.
  • ⅓ cup all-purpose flour – Helps thicken and stabilize the filling.
  • 3 cups fresh raspberries – Frozen berries are fine; fold them in last if using frozen to avoid over-thinning the filling.
The recipe ingredients with text overlay labeling each one.

How To Make Raspberry Oat Bars

This recipe is simple and comes together quickly. Follow these steps for reliable results.

Prepare the Oat Crust and Topping

  • Preheat the oven to 350°F and move the rack to the middle position. Spray a 9 by 13-inch pan with nonstick spray.
  • In a medium bowl, whisk together the flour, oats, sugar, and salt. Add the cold butter cubes and cut them into the dry ingredients with a pastry blender, fork, or your fingers until the mixture forms pea-sized crumbs.
  • Reserve 1 cup of the crumb mixture for the topping. Press the remaining mixture firmly into the bottom of the prepared pan to form the crust. Use the bottom of a jar or measuring cup to even it out.
  • Bake the crust for 10–12 minutes, then remove it from the oven and set aside while you make the filling.
The oat crumble mixed in a bowl and then some of it patted into the bottome of a 9 by 13-inch pan.

Make the Filling

  • In a medium bowl, whisk together the eggs, sugar, Greek yogurt, almond extract, and flour until smooth.
  • Gently fold in the raspberries, being careful not to crush them too much.
  • Pour the filling over the warm crust and spread it evenly.
The filling combined in a mixing bowl and then poured over the crust.

Assemble, Bake, and Serve

  • Sprinkle the reserved oat crumb mixture evenly over the raspberry filling.
  • Bake for 45 minutes, or until the top is lightly golden and the filling is set.
  • Allow the bars to cool for at least 30 minutes before slicing into squares.
  • Serve warm or at room temperature. They’re lovely on their own or topped with vanilla ice cream or whipped cream.
The raspberry oat bars before and after baking.

Recipe Tips

  • Press the crust evenly with the bottom of a measuring cup or jar to create a uniform layer that bakes consistently.
  • A pastry blender works well to cut in cold butter; if you don’t have one, your hands or a fork will do the job. Cold butter gives the best texture.
Four raspberry oat bars stacked on top of each other.

Raspberry Bars

These raspberry oat bars feature a buttery oat crust, a bright raspberry filling, and a crunchy oat crumble on top. Easy to make and full of flavor.
Prep: 15 mins
Cook: 1 hr
Cool Time: 30 mins
Total: 1 hr 45 mins
Servings: 12 people

Equipment

  • 9 by 13-inch baking pan
  • Mixing bowls
  • Whisk
  • Pastry blender (or fork/hands)
  • Measuring cups and spoons
  • Spatula or spoon

Ingredients

CRUST AND TOPPING:

  • 1 ½ cups all purpose flour
  • ½ cup old fashioned rolled oats
  • ½ cup granulated sugar
  • ⅛ teaspoon salt
  • 8 tablespoons cold unsalted butter, cut into cubes

FILLING:

  • 2 large eggs
  • 1 cup granulated sugar
  • ½ cup nonfat Greek yogurt
  • 1 teaspoon almond extract
  • ⅓ cup all purpose flour
  • 3 cups fresh raspberries (or frozen)

FOR SERVING:

  • Vanilla ice cream, optional
  • Whipped cream, optional

Instructions

MAKE THE CRUST AND TOPPING:

  1. Spray a 9 by 13-inch pan with nonstick cooking spray. Preheat the oven to 350°F and position the rack in the middle.
  2. In a bowl, whisk together the flour, oats, sugar, and salt. Add cold butter cubes and cut them into the dry ingredients until large crumbs form.
  3. Reserve 1 cup of the mixture for the topping. Press the remaining mixture firmly into the pan to form the crust and smooth with the bottom of a measuring cup.
  4. Bake the crust 10–12 minutes, then remove from the oven.

MAKE THE FILLING:

  1. Whisk the eggs, sugar, yogurt, almond extract, and flour until smooth.
  2. Gently fold in the raspberries.
  3. Pour the filling over the warm crust and spread evenly. Sprinkle the reserved crumb mixture on top.
  4. Bake for 45 minutes, until the top is golden and the filling is set.

TO FINISH:

  1. Allow the bars to cool about 30 minutes before cutting into squares.
  2. Serve plain or warm with a scoop of vanilla ice cream or a dollop of whipped cream.

Notes

SERVE: Enjoy these raspberry bars plain or warm with vanilla ice cream or whipped cream.

STORE: They can sit at room temperature for one day. After that, store in the refrigerator for 4–5 days.

FREEZE: Seal in an airtight container or freezer bag; freeze up to three months. Thaw in the refrigerator before serving.

Nutrition

Serving: 1 square, Calories: 302 kcal, Carbohydrates: 50 g, Protein: 5 g, Fat: 9 g, Sugar: 27 g

Nutrition information is an approximation.

Additional Info

Course: Dessert
Cuisine: American

Recipe FAQs

Can you freeze raspberry pie bars?

Yes. Place bars in an airtight container or wrap them in plastic first. You can freeze them in the pan or cut and wrap individual squares. Thaw in the fridge or on the countertop.

Can I use frozen berries instead of fresh ones?

Yes. Add frozen berries just before pouring the filling so the batter doesn’t become too stiff.

What other berries work in this recipe?

Blueberries, blackberries, chopped strawberries, pitted cherries, or a mixed-berry combination all work well using the same proportions.

More Desserts

  • Chocolate Chip Bundt Cake
  • Triple Chocolate Brownies
  • Lemon Poke Cake
The finished raspberry oat bars in the baking pan and cut into squares.