3-Ingredient Raspberry Oat Bars

These easy Raspberry Oat Bars come together with just three simple ingredients, making them the perfect dessert when you’re short on time. A buttery oatmeal cookie crust is layered with sweet raspberry preserves and topped with a crisp oat crumble before baking until golden. They’re perfect for potlucks, afternoon snacks, or an easy homemade dessert everyone will love.

🛒 Ingredients

Ingredient	Amount
Oatmeal cookie mix	1 (17–18-ounce) pouch
Unsalted butter, melted	½ cup (1 stick)
Raspberry preserves	1 to 1¼ cups

👩‍🍳 Instructions

Step 1: Prepare the Baking Dish

Preheat the oven to 350°F (175°C). Lightly grease a 9×13-inch baking dish with butter or nonstick cooking spray.

Step 2: Make the Crumble Mixture

In a medium bowl, combine the oatmeal cookie mix with the melted butter. Stir until the mixture is evenly moistened and crumbly.

Step 3: Form the Crust

Press about two-thirds of the crumb mixture firmly into the bottom of the prepared baking dish, creating an even layer.

Step 4: Add the Filling

Spread the raspberry preserves evenly over the crust, leaving a small border around the edges if desired to help prevent sticking.

Step 5: Add the Topping

Sprinkle the remaining crumb mixture evenly over the raspberry layer. Leave the topping loose to create a classic crumb texture as it bakes.

Step 6: Bake

Bake for 22–28 minutes, or until the topping is lightly golden and the raspberry filling is bubbling around the edges.

Step 7: Cool Completely

Place the baking dish on a wire rack and allow the bars to cool completely for at least 1 hour before cutting.

Tip: Letting the bars cool completely helps the raspberry filling set, making them much easier to slice and serve.

Step 8: Slice and Enjoy

Cut into 12–16 squares and carefully remove each bar with a spatula. Serve at room temperature and enjoy.