Oatmeal Raisin Cookie Bars are the perfect blend of a soft, chewy oatmeal cookie and a convenient, sliceable bar — studded with sweet raisins, warm cinnamon, and a rich maple frosting on top. This recipe is a celebration of classic, comforting flavors, where the hearty, wholesome taste of oats and raisins meets a buttery, brown sugar base. The magic begins with a thick, chewy dough that’s pressed into a pan and baked until golden. The maple buttercream frosting adds a luxurious, sweet finish that perfectly complements the spiced, oat-filled bars.
The brilliance of these bars lies in their simplicity and the way they capture all the nostalgic flavors of a classic oatmeal raisin cookie in a convenient, shareable format. Perfect for bake sales, lunchboxes, or afternoon snacks, these Oatmeal Raisin Cookie Bars are a treat that everyone will love.
Why You’ll Love This Recipe:
- Soft, Chewy, and Satisfying: The perfect oatmeal cookie texture.
- Loaded with Raisins: Sweet, chewy raisins in every bite.
- Warm Cinnamon Spice: A cozy, comforting flavor.
- Rich Maple Frosting: A sweet, creamy finish that elevates the bars.
- Easy to Make: Simple ingredients and straightforward instructions.
Ingredients:
For the Cookie Bars:*
1½ cups all-purpose flour
1 teaspoon baking soda
¾ teaspoon ground cinnamon
½ teaspoon fine salt
¾ cup unsalted butter, softened
¾ cup light brown sugar, packed
2 large eggs, at room temperature
2 teaspoons vanilla extract
2 cups quick-cooking oats
1 cup raisins (plus extra for topping, if desired)
For the Maple Frosting:*
½ cup unsalted butter, softened
1½ cups powdered sugar
1 tablespoon maple syrup
1 to 2 tablespoons heavy cream (at room temperature)
½ teaspoon ground cinnamon
¼ teaspoon maple extract
Instructions:
Step 1: Preheat Oven and Prepare Pan*
Preheat your oven to 350°F (175°C). Line a 9×9-inch baking pan with parchment paper, leaving an overhang on the sides, and lightly coat it with baking spray.
Step 2: Combine Dry Ingredients*
In a medium bowl, whisk together the flour, baking soda, cinnamon, and salt.
Step 3: Cream Butter and Sugar*
In a large mixing bowl, beat the softened butter and brown sugar together with an electric mixer for 2-3 minutes, until light and fluffy.
Step 4: Add Eggs and Vanilla*
Add the eggs one at a time, beating well after each addition. Mix in the vanilla extract.
Step 5: Add Dry Ingredients*
Gradually add the dry ingredients to the wet mixture, mixing just until no streaks of flour remain.
Step 6: Fold in Oats and Raisins*
Fold in the quick-cooking oats and raisins with a spatula until evenly distributed.
Step 7: Press and Bake*
Press the thick dough evenly into the prepared pan. Scatter extra raisins over the top if desired. Bake for 18-20 minutes, until the edges are lightly golden and the center is just set.
Step 8: Cool*
Let the bars cool in the pan for 5-10 minutes, then lift them out with the parchment overhang and transfer to a wire rack to cool completely.
Step 9: Make the Frosting*
In a medium bowl, beat the softened butter until smooth. Gradually add the powdered sugar and beat until combined. Add the maple syrup, 1 tablespoon of heavy cream, cinnamon, and maple extract. Beat until fluffy, adding the remaining cream if needed to reach a spreadable consistency.
Step 10: Frost and Slice*
Spread the frosting evenly over the completely cooled bars. Cut into 16 squares and serve.
Tips:
- Use Quick-Cooking Oats: They provide a softer texture than old-fashioned oats.
- Don’t Overbake: The bars should be just set in the center — overbaking will make them dry.
- Cool Completely Before Frosting: If the bars are warm, the frosting will melt.
- Customize the Add-Ins: Swap the raisins for chocolate chips, dried cranberries, or chopped nuts.
- Store Properly: Keep in an airtight container to maintain freshness.
Storage Options:
- Room Temperature: Store in an airtight container at room temperature for up to 4 days.
- Freezer: These bars freeze well for up to 2 months. Wrap individually or place in a freezer-safe container. Thaw at room temperature before serving.
- Make-Ahead: Prepare the bars a day in advance and keep covered at room temperature. Add the frosting just before serving.
Oatmeal Raisin Cookie Bars are a delicious, comforting treat that’s perfect for any occasion. With their chewy texture, warm cinnamon spice, and rich maple frosting, they’re sure to become a new favorite. Enjoy!
