If you love the comforting flavors of oatmeal raisin cookies and want something even easier to share, Oatmeal Raisin Cookie Bars are the perfect dessert. Soft, chewy, and warmly spiced, these bars are a nostalgic treat baked in a pan and topped with a creamy maple cinnamon frosting. They’re ideal for potlucks, lunchboxes, or a cozy dessert with your afternoon coffee.
Unlike traditional cookies, there’s no need to scoop out dough or bake multiple batches—just spread the batter, bake, frost, and slice. The combination of hearty oats, sweet raisins, and rich, buttery frosting makes every bite feel homemade and heartwarming.
Why You’ll Love These Oatmeal Raisin Cookie Bars
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One-Bowl Wonder – Easy to make with minimal cleanup.
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Soft and Chewy – Perfect cookie texture in bar form.
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Maple Cinnamon Frosting – Adds a warm, sweet finish that complements the raisins.
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Great for Crowds – Slice and serve for gatherings or gifting.
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Make-Ahead Friendly – Can be stored and frozen without losing flavor or texture.
Ingredients
For the Cookie Bars:
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1 ½ cups all-purpose flour
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1 teaspoon baking soda
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¾ teaspoon ground cinnamon
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½ teaspoon fine salt
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¾ cup unsalted butter, room temperature
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¾ cup packed light brown sugar
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2 large eggs, room temperature
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2 teaspoons vanilla extract
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2 cups quick-cooking oats
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1 cup raisins
For the Frosting:
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½ cup unsalted butter, room temperature
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1 ½ cups powdered sugar
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1 tablespoon maple syrup
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1–2 tablespoons heavy cream, room temperature
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½ teaspoon ground cinnamon
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¼ teaspoon maple extract (optional)
Instructions
Step 1: Prepare the Oven and Pan
Preheat your oven to 350°F (175°C). Grease or line a 9×13-inch baking pan with parchment paper.
Step 2: Mix Dry Ingredients
In a medium bowl, whisk together the flour, baking soda, cinnamon, and salt. Set aside.
Step 3: Cream Butter and Sugar
In a large bowl, use a hand mixer or stand mixer to cream the butter and brown sugar until light and fluffy, about 2–3 minutes.
Step 4: Add Eggs and Vanilla
Beat in the eggs one at a time, then add the vanilla extract. Mix until smooth and fully incorporated.
Step 5: Combine
Gradually mix in the dry ingredients. Once combined, fold in the oats and raisins by hand.
Step 6: Bake
Spread the batter evenly into the prepared pan. Bake for 22–25 minutes or until golden and a toothpick inserted into the center comes out clean.
Step 7: Cool
Let the bars cool completely in the pan before frosting.
Step 8: Make the Frosting
Beat the butter until creamy, then gradually add powdered sugar, mixing until smooth. Add maple syrup, cinnamon, and maple extract (if using). Add cream a little at a time until the frosting reaches spreadable consistency.
Step 9: Frost and Slice
Spread the frosting evenly over the cooled bars. Slice into squares and serve!
Storage & Freezing Instructions
To Store:
Keep the bars in an airtight container at room temperature for up to 3 days or refrigerated for up to a week.
To Freeze:
Wrap bars individually in plastic wrap, then store in a freezer-safe bag or container for up to 3 months. Thaw at room temperature or in the fridge before serving.
Serving Suggestions & Pairings
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With Coffee or Tea: A cozy pairing for an afternoon break.
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Topped with Ice Cream: A scoop of vanilla or cinnamon ice cream takes them to dessert heaven.
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Fruit & Nuts: Serve with apple slices or toasted walnuts for a rustic platter.
Pro Tips for Perfect Oatmeal Raisin Bars
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Use Room Temp Butter and Eggs – Helps the batter come together smoothly.
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Don’t Overmix – Especially after adding flour; overmixing leads to tough bars.
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Plump the Raisins – Soak in warm water for 10 minutes before mixing in for softer bites.
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Cool Completely Before Frosting – Warm bars will melt the frosting.
Conclusion
These Oatmeal Raisin Cookie Bars with Maple Cinnamon Frosting are the best of both worlds—classic cookie flavor with the ease of a bar recipe and a creamy topping that makes them unforgettable. Whether you’re baking for a family gathering, school event, or just for yourself, these bars deliver cozy flavor in every bite.
Try them today and you’ll be amazed how quickly they disappear!
Frequently Asked Questions
Can I use old-fashioned oats instead of quick oats?
Yes, but the texture will be slightly chewier and more rustic.
Can I use a different dried fruit?
Absolutely! Dried cranberries or chopped dates work beautifully.
Do I have to frost them?
Nope—these bars are delicious plain too! The frosting adds indulgence but is optional.
Can I make them gluten-free?
Yes, just substitute a gluten-free 1:1 baking flour and certified GF oats.
How do I know when they’re done baking?
The edges will be golden, and a toothpick inserted in the center should come out clean.
Oatmeal Raisin Cookie Bars with Maple Frosting
- Total Time: 40 minutes
- Yield: 16 bars 1x
- Diet: Vegetarian
Description
Soft and chewy oatmeal raisin cookie bars baked in a pan and topped with maple cinnamon frosting—classic comfort meets easy baking.
Ingredients
For the Cookie Bars:
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1 ½ cups all-purpose flour
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1 teaspoon baking soda
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¾ teaspoon ground cinnamon
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½ teaspoon fine salt
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¾ cup unsalted butter, room temperature
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¾ cup packed light brown sugar
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2 large eggs, room temperature
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2 teaspoons vanilla extract
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2 cups quick-cooking oats
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1 cup raisins
For the Frosting:
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½ cup unsalted butter, room temperature
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1 ½ cups powdered sugar
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1 tablespoon maple syrup
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1–2 tablespoons heavy cream, room temperature
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½ teaspoon ground cinnamon
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¼ teaspoon maple extract (optional)
Instructions
Preheat your oven to 350°F (175°C). Grease or line a 9×13-inch baking pan with parchment paper.
In a medium bowl, whisk together the flour, baking soda, cinnamon, and salt. Set aside.
In a large bowl, use a hand mixer or stand mixer to cream the butter and brown sugar until light and fluffy, about 2–3 minutes.
Beat in the eggs one at a time, then add the vanilla extract. Mix until smooth and fully incorporated.
Gradually mix in the dry ingredients. Once combined, fold in the oats and raisins by hand.
Spread the batter evenly into the prepared pan. Bake for 22–25 minutes or until golden and a toothpick inserted into the center comes out clean.
Let the bars cool completely in the pan before frosting.
Beat the butter until creamy, then gradually add powdered sugar, mixing until smooth. Add maple syrup, cinnamon, and maple extract (if using). Add cream a little at a time until the frosting reaches spreadable consistency.
Spread the frosting evenly over the cooled bars. Slice into squares and serve!
Notes
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Optional maple extract deepens flavor
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Plump raisins before baking
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Great for make-ahead or freezing
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 bar
- Calories: 290
- Sugar: 22g
- Sodium: 140mg
- Fat: 13g
- Saturated Fat: 8g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 40g
- Fiber: 1g
- Protein: 3g
- Cholesterol: 45mg
Keywords: Oatmeal raisin bars, cookie bars, easy dessert, frosted bars