These Raspberry Oatmeal Crumble Bars are filled with a delicious raspberry jam and topped with a buttery, crumbly oat topping! They’re easy to throw together and if you need to plan ahead these bars are even freezer friendly!
Preheat the oven to 350°F (175°C). Line an 8x8-inch (20x20 cm) pan with aluminum foil, leaving enough overhang on the sides.
Spray with cooking spray and set aside.
Make the crust/crumble
In a large mixing bowl, combine the flour, oats, granulated sugar, brown sugar, and salt.
Pour in the melted butter and vanilla, and stir until the dry ingredients are evenly moistened.
Set aside 1 cup of the crumble mixture, then press the rest into the prepared pan to create a smooth layer.
Spread the raspberry jam
Spread the jam over the crust. If your jam is cold, warm it up for about 30 seconds in the microwave so it’s easy to spread.
Add the topping
Sprinkle the reserved crumbs evenly over the jam layer.
Bake
Bake the bars for 28-30 minutes, until the jam is bubbly and the crumb topping is lightly golden. Place the pan on a wire rack to cool completely before cutting into squares.
Notes
Storage - Store the crumble bars in an airtight container in the refrigerator for up to a week or freeze for up to 3 months.