Oatmeal cookie bars: Prepare to be amazed! Imagine sinking your teeth into a chewy, comforting treat that perfectly blends the wholesome goodness of oatmeal with the irresistible sweetness of a classic cookie. These aren’t your grandma’s dry, crumbly oatmeal cookies; these are soft, satisfying bars that will have everyone begging for the recipe.
While the exact origins of the oatmeal cookie are debated, its roots are firmly planted in the Scottish oatcake, a simple and nourishing staple. Over time, as oats made their way across the Atlantic, resourceful bakers began incorporating them into cookies, adding spices, sweeteners, and other delightful ingredients. The result? A hearty and delicious treat that quickly gained popularity.
What makes oatmeal cookie bars so beloved? It’s the perfect combination of textures the slight chewiness from the oats, the soft and buttery base, and the optional addition of chocolate chips, nuts, or dried fruit for an extra burst of flavor. Plus, they’re incredibly easy to make and perfect for sharing. Whether you’re looking for a quick after-school snack, a potluck dessert, or a comforting treat to enjoy with a cup of coffee, these bars are always a crowd-pleaser. Get ready to experience the ultimate in oatmeal cookie satisfaction!
Ingredients:
- 1 cup (2 sticks) unsalted butter, softened
- 1 cup granulated sugar
- 1 cup packed light brown sugar
- 2 large eggs
- 1 tablespoon vanilla extract
- 1 1/2 cups all-purpose flour
- 1 teaspoon baking soda
- 1 teaspoon ground cinnamon
- 1/2 teaspoon salt
- 3 cups rolled oats (not instant)
- 1 cup chocolate chips (semi-sweet or milk chocolate, your preference!)
- 1 cup chopped walnuts or pecans (optional, but highly recommended)
- 1/2 cup raisins (optional, some love them, some hate them!)
Preparing the Dough:
- Cream the Butter and Sugars: In a large bowl (or the bowl of your stand mixer), cream together the softened butter, granulated sugar, and brown sugar until light and fluffy. This usually takes about 3-5 minutes. Make sure to scrape down the sides of the bowl occasionally to ensure everything is evenly mixed. The mixture should be pale and airy. This step is crucial for achieving a tender and chewy texture.
- Add the Eggs and Vanilla: Beat in the eggs one at a time, mixing well after each addition. Then, stir in the vanilla extract. The vanilla really enhances the flavor of the cookies, so don’t skip it!
- Combine Dry Ingredients: In a separate medium bowl, whisk together the flour, baking soda, cinnamon, and salt. Whisking ensures that the baking soda and cinnamon are evenly distributed throughout the flour, which is important for proper leavening and flavor.
- Gradually Add Dry Ingredients to Wet Ingredients: Gradually add the dry ingredients to the wet ingredients, mixing on low speed until just combined. Be careful not to overmix! Overmixing can develop the gluten in the flour, resulting in tough cookie bars. Mix until you no longer see streaks of flour.
- Stir in Oats, Chocolate Chips, Nuts, and Raisins: Stir in the rolled oats, chocolate chips, walnuts (or pecans), and raisins (if using). Make sure everything is evenly distributed throughout the dough. I like to use a spatula for this step to avoid overmixing.
Baking the Oatmeal Cookie Bars:
- Preheat Oven and Prepare Baking Pan: Preheat your oven to 350°F (175°C). Grease and flour a 9×13 inch baking pan. Alternatively, you can line the pan with parchment paper, leaving an overhang on the sides for easy removal. This is my preferred method because it makes cleanup a breeze!
- Press Dough into Pan: Press the oatmeal cookie dough evenly into the prepared baking pan. You can use your hands or the back of a spoon to spread the dough. Make sure the dough is packed firmly into the corners of the pan.
- Bake: Bake for 25-30 minutes, or until the edges are golden brown and a toothpick inserted into the center comes out with just a few moist crumbs. The baking time may vary depending on your oven, so keep an eye on the bars.
- Cool Completely: Let the oatmeal cookie bars cool completely in the pan before cutting into squares. This is important because the bars will continue to set as they cool. If you try to cut them while they’re still warm, they’ll be crumbly and messy. I know it’s tempting to dig in right away, but trust me, it’s worth the wait!
Cutting and Serving:
- Cut into Squares: Once the oatmeal cookie bars are completely cool, cut them into squares. The size of the squares is up to you! I usually cut them into about 24 squares. If you lined the pan with parchment paper, you can simply lift the bars out of the pan using the overhang and then cut them on a cutting board.
- Serve and Enjoy: Serve the oatmeal cookie bars and enjoy! They’re delicious on their own, but they’re also great with a glass of milk or a scoop of vanilla ice cream.
Tips and Variations:
- Use Room Temperature Ingredients: Using room temperature butter and eggs will help the ingredients combine more easily and create a smoother dough.
- Don’t Overmix: Overmixing the dough can result in tough cookie bars. Mix until just combined.
- Customize Your Bars: Feel free to customize the oatmeal cookie bars to your liking. You can add different types of chocolate chips, nuts, or dried fruit. You could also add a sprinkle of sea salt on top before baking for a sweet and salty treat.
- Make Them Gluten-Free: To make these oatmeal cookie bars gluten-free, simply substitute the all-purpose flour with a gluten-free all-purpose flour blend. Make sure the blend contains xanthan gum.
- Storage: Store the oatmeal cookie bars in an airtight container at room temperature for up to 3 days. They can also be frozen for longer storage.
- Add Spices: Experiment with different spices! A pinch of nutmeg or ground cloves can add a warm and cozy flavor.
- Try Different Extracts: Instead of vanilla extract, try almond extract or maple extract for a different flavor profile.
- Make Them Healthier: Reduce the amount of sugar slightly and add some flaxseed meal or wheat germ for added nutrients. You can also use unsweetened applesauce to replace some of the butter.
- Add a Frosting: For an extra special treat, frost the oatmeal cookie bars with a cream cheese frosting or a simple glaze.
Troubleshooting:
- Bars are too dry: Make sure you’re using enough butter and eggs. Also, be careful not to overbake the bars.
- Bars are too crumbly: This could be due to overmixing the dough or not using enough butter. Also, make sure the bars are completely cool before cutting them.
- Bars are too hard: This could be due to overbaking the bars or using too much flour.
- Bars are too soft: This could be due to underbaking the bars or using too much butter.
- Bars are not spreading: This could be due to using cold butter or not enough leavening agent (baking soda).
Nutritional Information (Approximate):
Please note that the nutritional information is an estimate and may vary depending on the specific ingredients you use.
- Calories: Approximately 200-250 per bar
- Fat: Approximately 10-15 grams per bar
- Saturated Fat: Approximately 6-8 grams per bar
- Cholesterol: Approximately 30-40 mg per bar
- Sodium: Approximately 100-150 mg per bar
- Carbohydrates: Approximately 25-35 grams per bar
- Fiber: Approximately 2-3 grams per bar
- Sugar: Approximately 15-20 grams per bar
- Protein: Approximately 3-4 grams per bar
Enjoy your homemade Oatmeal Cookie Bars!

Conclusion:
And there you have it! These Oatmeal Cookie Bars are truly a game-changer. They’re the perfect blend of chewy, comforting, and incredibly easy to make. I know, I know, there are a million cookie recipes out there, but trust me on this one. These bars are different. They’re less fussy than individual cookies, making them ideal for a quick weeknight dessert or a bake-sale contribution that will disappear in minutes. The hearty oats provide a satisfying texture, and the warm spices create a flavor profile that’s simply irresistible. But what truly makes these bars a must-try is their versatility. They’re a blank canvas for your culinary creativity!Serving Suggestions and Variations:
* Classic Comfort: Serve them warm with a scoop of vanilla ice cream for the ultimate indulgence. A drizzle of caramel sauce wouldn’t hurt either! * Breakfast on the Go: Cut them into smaller squares and pack them for a quick and satisfying breakfast or snack. They’re surprisingly filling! * Nutty Delight: Add a handful of chopped walnuts, pecans, or almonds to the batter for extra crunch and flavor. * Chocolate Lover’s Dream: Fold in chocolate chips (milk, dark, or semi-sweet the choice is yours!) or chunks for a decadent twist. You could even swirl in some Nutella before baking! * Fruity Fun: Dried cranberries, raisins, or chopped apples add a burst of sweetness and chewiness. * Spice It Up: Experiment with different spices like nutmeg, cardamom, or even a pinch of cayenne pepper for a subtle kick. * Gluten-Free Option: Simply substitute the all-purpose flour with a gluten-free blend. Be sure to choose a blend that’s designed for baking for the best results. These Oatmeal Cookie Bars are more than just a recipe; they’re an invitation to create something delicious and share it with the people you love. They are so easy to customize to your liking. Imagine adding peanut butter chips and a drizzle of melted peanut butter on top! Or maybe some butterscotch chips for a caramel-like flavor. The possibilities are endless! I’m so confident that you’ll love these bars as much as I do. They’re a guaranteed crowd-pleaser, and they’re so simple to make that even beginner bakers can achieve success. So, what are you waiting for? Preheat your oven, gather your ingredients, and get ready to bake up a batch of these amazing Oatmeal Cookie Bars. I can’t wait to hear what you think! Once you’ve tried the recipe, please come back and leave a comment below. Let me know what variations you tried, what your family thought, and any tips or tricks you discovered along the way. Your feedback is invaluable, and it helps other readers discover new and exciting ways to enjoy this recipe. Sharing your experience will not only help others but also inspire me to create even more delicious recipes for you to enjoy. Happy baking! Print
Oatmeal Cookie Bars: The Ultimate Guide to Baking Delicious Treats
- Total Time: 40 minutes
- Yield: 24 bars 1x
Description
Chewy oatmeal cookie bars with chocolate chips, nuts, and optional raisins. Easy 9×13 inch pan recipe, great for sharing!
Ingredients
- 1 cup (2 sticks) unsalted butter, softened
- 1 cup granulated sugar
- 1 cup packed light brown sugar
- 2 large eggs
- 1 tablespoon vanilla extract
- 1 1/2 cups all-purpose flour
- 1 teaspoon baking soda
- 1 teaspoon ground cinnamon
- 1/2 teaspoon salt
- 3 cups rolled oats (not instant)
- 1 cup chocolate chips (semi-sweet or milk chocolate, your preference!)
- 1 cup chopped walnuts or pecans (optional, but highly recommended)
- 1/2 cup raisins (optional)
Instructions
- Cream Butter and Sugars: In a large bowl, cream together softened butter, granulated sugar, and brown sugar until light and fluffy (3-5 minutes).
- Add Eggs and Vanilla: Beat in eggs one at a time, then stir in vanilla extract.
- Combine Dry Ingredients: In a separate bowl, whisk together flour, baking soda, cinnamon, and salt.
- Combine Wet and Dry: Gradually add dry ingredients to wet ingredients, mixing on low speed until just combined. Do not overmix.
- Add Oats, Chocolate Chips, Nuts, and Raisins: Stir in oats, chocolate chips, walnuts (or pecans), and raisins (if using).
- Preheat Oven and Prepare Pan: Preheat oven to 350°F (175°C). Grease and flour a 9×13 inch baking pan or line with parchment paper.
- Press Dough into Pan: Press dough evenly into the prepared pan.
- Bake: Bake for 25-30 minutes, or until edges are golden brown and a toothpick inserted into the center comes out with just a few moist crumbs.
- Cool Completely: Let cool completely in the pan before cutting into squares.
- Cut and Serve: Cut into squares and enjoy!
Notes
- Use room temperature butter and eggs for best results.
- Don’t overmix the dough.
- Customize with different chocolate chips, nuts, or dried fruit.
- For gluten-free, use a gluten-free all-purpose flour blend.
- Store in an airtight container at room temperature for up to 3 days or freeze for longer storage.
- Experiment with different spices like nutmeg or cloves.
- Try almond or maple extract instead of vanilla.
- Reduce sugar and add flaxseed meal or applesauce for a healthier version.
- Add a cream cheese frosting or glaze for an extra treat.
- Prep Time: 15 minutes
- Cook Time: 25 minutes
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