Oatmeal Raisin Cookie Bars

by Nina Johnson July 16, 2025

Imagine biting into a soft, chewy bar that tastes like the coziest oatmeal cookie you’ve ever had, only better. These Oatmeal Raisin Cookie Bars combine hearty oats, warm spices, and plump raisins, all topped with a drizzle of creamy glaze. They’re perfect for lunchbox treats, afternoon snacks, or a nostalgic dessert after dinner.

What makes these bars truly special is their comforting texture. The edges bake up lightly crisp, while the center stays tender and moist, packed with the natural sweetness of raisins. Plus, they’re quick to whip up and can easily be made ahead for busy days or gatherings.

What Kind of Oats Should I Use?

For the best texture, go with old-fashioned rolled oats. They offer a nice chew and hold their shape well during baking, unlike instant oats, which can make the bars mushy, or steel-cut oats, which stay too firm.

Old-fashioned rolled oats: Provide a hearty texture and nutty flavor.
All-purpose flour: Helps bind the dough and gives the bars structure.
Brown sugar: Adds moisture and a caramel-like sweetness.
Granulated sugar: Balances the flavor and lightens the crumb.
Unsalted butter: Gives richness and ensures a tender bake.
Eggs: Bind everything together and add softness.
Vanilla extract: Enhances the warm, cozy flavors.
Cinnamon: Adds a gentle spice that pairs perfectly with the oats and raisins.
Baking soda: Helps the bars rise slightly, keeping them from being too dense.
Salt: Balances the sweetness and deepens the flavors.
Raisins: Provide bursts of chewy, natural sweetness.
Optional glaze (powdered sugar + milk + vanilla): For a sweet finish that makes these bars extra irresistible.

Step 1: Prep the Pan and Oven

Preheat your oven to 350°F (175°C). Line a baking pan with parchment paper or lightly grease it to prevent sticking.

Step 2: Cream the Butter and Sugars

In a large mixing bowl, beat the softened butter, brown sugar, and granulated sugar until light and fluffy. This creates a creamy base for your bars.

Step 3: Add the Wet Ingredients

Mix in the eggs, one at a time, followed by the vanilla extract. Beat until fully combined.

Step 4: Combine the Dry Ingredients

In a separate bowl, whisk together the flour, rolled oats, cinnamon, baking soda, and salt. Gradually stir the dry ingredients into the wet mixture, mixing until just combined.

Step 5: Fold in the Raisins

Gently fold in the raisins, ensuring they are evenly distributed throughout the dough.

Step 6: Spread and Bake

Transfer the dough to the prepared pan, smoothing it into an even layer. Bake for 25-30 minutes, or until the edges are golden and a toothpick inserted in the center comes out clean.

Step 7: Cool and Glaze (Optional)

Let the bars cool completely before drizzling with a simple glaze made of powdered sugar, milk, and a splash of vanilla extract. Cut into squares and enjoy!

Serve these Oatmeal Raisin Cookie Bars at room temperature for the best texture and flavor. They make a wonderful addition to dessert platters, potlucks, or as a sweet lunchbox surprise. Pair them with a cup of tea, coffee, or a glass of milk for ultimate comfort.

To store, place the bars in an airtight container at room temperature for up to 4 days. For longer storage, freeze the cut bars between layers of parchment paper in a freezer-safe container for up to 2 months. Simply thaw at room temperature when ready to enjoy.

Frequently Asked Questions

How can I make these bars chewier?

For extra chew, use dark brown sugar and slightly underbake the bars by a few minutes.

Can I add nuts?

Absolutely! Chopped walnuts or pecans add a delightful crunch and pair beautifully with the raisins.

Can I use quick oats instead of rolled oats?

You can, but keep in mind that quick oats may make the bars softer and less textured.

How do I make the glaze?

Whisk together 1 cup powdered sugar, 1-2 tablespoons milk, and ½ teaspoon vanilla extract until smooth. Drizzle over cooled bars.

Are these bars freezer-friendly?

Yes! Wrap them well or store in an airtight container, and they’ll keep in the freezer for up to 2 months.

If you love these Oatmeal Raisin Cookie Bars, you’ll probably enjoy these other sweet favorites:

• Blueberry Swirl Yogurt Bites for a fruity and creamy indulgence.
• Pistachio Pudding Sugar Cookie Bars for a nutty, soft twist.
• Strawberry Cheesecake Banana Pudding when you’re craving a no-bake layered dessert.
• Cheesecake Stuffed Caramel Apple Cookies if you’re in the mood for apple-cinnamon bliss.
• Maraschino Cherry Chocolate Chip Cookies for a pop of cherry-chocolate goodness.

📌 Save this recipe to your Pinterest dessert board so you can come back to it anytime.

And let me know in the comments how yours turned out! Did you add nuts or swap in chocolate chips? Maybe you tried a cinnamon glaze?

I love seeing your creative spins on these bakes. Questions are welcome too—let’s bake and learn together! Find even more daily recipes on my Pinterest Life with Nina.