There’s something beautifully nostalgic about the scent of cinnamon and warm oats drifting from the kitchen on a sunlit summer afternoon. For me, that scent is deeply rooted in memories of my grandmother’s kitchen in upstate New York, where every summer we baked treats to share with family and neighbors. One of our favorites? Her chewy, golden Oatmeal Raisin Cookie Bars—simple, hearty, and made with love.
I remember the old ceramic mixing bowl she always used, the wooden spoon worn soft from years of stirring, and the way she’d hum while we worked together. Now, I’ve brought her classic recipe into the modern kitchen, keeping the soul intact while simplifying it for today’s home baker. These bars are perfect for picnics, road trips, family get-togethers, or just because you need a little sweetness in your day.
Table of Contents
Why You’ll Love These Oatmeal Raisin Cookie Bars
Here’s why this easy recipe should be a staple in your summer baking rotation:
- Quick and Simple: 15 minutes of prep, one bowl, and no chilling required.
- Chewy Texture: Thanks to old-fashioned oats and butter.
- Flavorful: Brown sugar, cinnamon, and vanilla create a rich, comforting taste.
- Travel-Friendly: These don’t melt or crumble, making them perfect for lunchboxes and outdoor events.
- Versatile: Easily adaptable to your taste—add nuts, chocolate, or swap raisins for dried cranberries.
Ingredients you will need For Oatmeal Raisin Cookie Bars
Here’s what you’ll need to make 12 delicious bars:
- 1 cup (2 sticks) unsalted butter, softened
- 1 cup packed light brown sugar
- ½ cup granulated sugar
- 2 large eggs
- 2 teaspoons vanilla extract
- 1 ½ cups all-purpose flour
- 1 teaspoon baking soda
- 1 teaspoon ground cinnamon
- ½ teaspoon salt
- 3 cups old-fashioned rolled oats
- 1 cup raisins (golden or regular)
Pro Tip: Soaking raisins in warm water or apple juice for 10 minutes before adding them will make them extra plump and juicy.
How To Make Oatmeal Raisin Cookie Bars
Step 1: Prep Your Pan and Oven
Preheat your oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper or lightly grease it.
Step 2: Cream Butter and Sugars
In a large mixing bowl, cream together the softened butter, brown sugar, and granulated sugar until light and fluffy—about 3 minutes using an electric mixer.
Step 3: Mix in Eggs and Vanilla
Beat in the eggs one at a time. Add vanilla extract and mix until fully incorporated.
Step 4: Combine Dry Ingredients
In a separate bowl, whisk together the flour, baking soda, cinnamon, and salt. Gradually add this to the wet mixture.
Step 5: Add Oats and Raisins
Fold in the oats and raisins. The dough will be thick—use a spatula or your hands to ensure everything is evenly distributed.
Step 6: Press into Pan
Press the dough evenly into your prepared baking pan. Use damp fingers or a spatula to smooth the top.
Step 7: Bake
Bake for 25–28 minutes or until the top is golden brown and a toothpick inserted in the center comes out mostly clean.
Step 8: Cool and Slice
Let cool in the pan for 10–15 minutes, then lift out and cool completely on a wire rack. Slice into 12 bars.
Nutritional Information (Per Bar)
- Calories: 210 kcal
- Total Fat: 10g
- Carbohydrates: 29g
- Sugars: 15g
- Protein: 3g
- Fiber: 2g
Behind the Bake: Why This Recipe Works
Understanding the science of baking helps elevate your results. Here’s why each element matters:
- Brown Sugar: Adds moisture and a caramel-like flavor thanks to molasses.
- Old-Fashioned Oats: Provide chew and structure. Quick oats make a softer bar, but lose texture.
- Butter vs. Oil: Butter brings flavor and helps crisp the edges slightly.
- Eggs: Bind the dough and contribute to the rich texture.
- Raisins: Offer natural sweetness and moisture.
Make-Ahead, Storage & Freezing Tips
- Make-Ahead: Prepare the dough up to 24 hours in advance and refrigerate. Let come to room temperature before baking.
- Room Temperature Storage: Store in an airtight container for up to 5 days.
- Freezing: Wrap individually and freeze for up to 3 months. Thaw at room temperature or warm in the microwave.
Delicious Variations
These bars are the perfect base for endless customization. Try one of these variations:
- Oatmeal Chocolate Chip Bars: Swap raisins for semi-sweet or dark chocolate chips.
- Cranberry White Chocolate Bars: Use dried cranberries and white chocolate for a tangy-sweet twist.
- Nutty Delight: Add ½ cup chopped walnuts or pecans for crunch.
- Tropical Summer Bars: Use coconut flakes and chopped dried pineapple for an island vibe.
- Spice it Up: Add ¼ tsp nutmeg or cardamom for an aromatic lift.
Craving More Cookie Goodness?
- Try the floral and seasonal flavor of Spring Blossom Cookies.
- Explore fruity flavors with these Lemon Blueberry Cookies.
- Prefer bar-style desserts? Check out this delightful Carrot Cake Bars Recipe.
- For something nutty and unique, whip up some Pistachio Thumbprint Cookies.
- Looking for healthy breakfast options? These Healthy Oat Crepes are oat-packed and delicious.
- Watching your sugar intake? These Sugar-Free Chocolate Chip Cookies are a must-try.
Perfect Summer Pairings
These Oatmeal Raisin Cookie Bars are wonderful with:
- A cold glass of milk or almond milk
- Homemade iced coffee or chai latte
- Fresh fruit salads or berry compote
- Scoops of vanilla or cinnamon ice cream
Event Ideas:
- Picnics & BBQs: Cut into smaller squares for bite-size treats.
- Potlucks: Easy to transport and universally loved.
- Hiking Snacks: High in carbs and fiber for an energy boost.
Frequently Asked Questions (FAQs)
Can I make this recipe gluten-free?
Yes. Use a 1:1 gluten-free all-purpose flour and ensure your oats are labeled gluten-free.
Can I use quick oats instead of old-fashioned oats?
You can, but the texture will be softer and less chewy.
Can I reduce the sugar?
You can cut the granulated sugar by up to half without a major impact on texture. Just note that the bars will be less sweet and slightly drier.
How do I know when the bars are done baking?
The top should be golden brown and a toothpick should come out with a few moist crumbs but no wet batter.
Can I double the recipe?
Yes! Use a larger pan or two 9×13 pans. You may need to add a few minutes to the bake time.
Oatmeal Raisin Cookie Bars
Equipment
- 8×8 inch baking pan
- Parchment Paper
Ingredients
- 1 cup all-purpose flour
- 1/2 cup granulated sugar
- 1/2 cup brown sugar packed
- 1/2 tsp baking soda
- 1/2 tsp salt
- 1/2 tsp ground cinnamon
- 1/4 tsp freshly ground nutmeg
- 1 tsp vanilla extract
- 1 large egg
- 1/2 cup unsalted butter melted and cooled
- 2 cups quick-cooking oats not instant
- 1 1/2 cups raisins
Instructions
- Preheat oven to 350°F (175°C). Line an 8×8-inch baking pan with parchment paper for easy removal.
- In a large bowl, whisk together flour, granulated sugar, brown sugar, baking soda, salt, cinnamon, and nutmeg.
- Make a well in the center and add vanilla, egg, and melted butter. Stir until combined.
- Fold in oats and raisins until evenly mixed.
- Spread dough evenly in prepared pan with a spatula or fingers.
- Bake for 22–26 minutes until center is set and edges are golden.
- Cool completely in pan on a wire rack before slicing.
Notes
Conclusion
These Oatmeal Raisin Cookie Bars are more than just a recipe—they’re a warm hug from the past, a fuss-free dessert for today, and the perfect companion for summer adventures. Whether you stick with the classic or branch out with your own twist, one thing’s for sure: these bars will find a permanent spot in your dessert rotation.
So roll up your sleeves, preheat your oven, and bring a little old-school magic into your kitchen. Your tastebuds (and anyone you share them with) will thank you.
