Name: Heavenly Oatmeal Raisin Cookie Bars with Creamy Frosting
Prep time: 15 min
Cook time: 20 min
Total time: 45 min
Ingredients: 1 cup all-purpose flour (Can substitute with whole wheat flour for nuttier flavor.); 1 teaspoon baking soda (Acts as a leavening agent.); 1 teaspoon cinnamon (Adjust for a stronger flavor if desired.); 1/2 teaspoon salt (Enhances all flavors.); 1/2 cup unsalted butter (Ensure it's soft for easy mixing.); 1 cup brown sugar (Can use light or dark.); 2 large eggs (At room temperature.); 1 teaspoon vanilla extract (Can swap for almond extract.); 2 cups old-fashioned oats (Provides chewiness.); 1 cup raisins (Can replace with chocolate chips or other dried fruits.); 2 cups powdered sugar (Sweetens and thickens frosting.); 1/4 cup maple syrup (Primary sweetener.); 1/4 cup heavy cream (Adjusts frosting consistency.); 1/2 teaspoon maple extract (Optional for a stronger flavor.)

Jump to Recipe Print Recipe

As I sifted through my kitchen, the warm scent of cinnamon wrapped around me like a comforting blanket, instantly transporting me back to my grandmother’s cozy home. There’s something incredibly nostalgic about Oatmeal Raisin Cookie Bars that makes them a go-to in my recipe collection. These delightful treats combine the heartiness of oats with the sweetness of raisins, all crowned with a creamy maple-cinnamon frosting that brings extra joy to each bite. Not only are they a breeze to make, perfect for both seasoned bakers and kitchen novices alike, but they also make for a wonderful addition to any gathering, sure to please both family and friends. Ready to whip up a batch that brings back those cherished memories? Let’s dive into the world of these chewy delights!

Why are these cookie bars irresistible?

Nostalgic flavors flood your senses with every bite, bringing back cherished childhood memories of grandma’s kitchen. Easy to make, even novice bakers can whip these bars up in no time! Versatile options let you mix and match ingredients; try adding chocolate chips or nuts for a personalized touch. Perfect for sharing, they’re great for gatherings and always a crowd-pleaser. And let’s not forget that creamy maple-cinnamon frosting adds a luxurious finish that takes these oatmeal raisin bars to a whole new level! If you’re looking for more delicious cookie ideas, check out these Layer Everything Bars or the delightful Double Chocolate Cookie.

Oatmeal Raisin Cookie Bars Ingredients

For the Cookie Bars

All-purpose flour – Provides structure for the bars; can substitute with whole wheat flour for a nuttier flavor.
Baking soda – Acts as a leavening agent, ensuring the bars rise beautifully.
Cinnamon – Adds warmth and spice; adjust the quantity for a stronger flavor if desired.
Salt – Enhances all flavors in the recipe and balances out sweetness.
Unsalted butter – Creates a rich texture; ensure it’s soft for easy mixing. Consider coconut oil for a dairy-free option.
Brown sugar – Adds sweetness and moisture; you can use light or dark brown sugar interchangeably.
Eggs – Bind the ingredients together; make sure they are at room temperature for optimal incorporation.
Vanilla extract – Introduces a delightful fragrance; swap it for almond extract for a different twist.
Old-fashioned oats – Provide chewiness to the bars; avoid quick oats for a different texture.
Raisins – Impart natural sweetness and chewiness; feel free to replace them with chocolate chips or other dried fruits for a change.

For the Maple-Cinnamon Frosting

Powdered sugar – Sweetens and thickens the frosting; you can make your own by blending granulated sugar if necessary.
Maple syrup – Primary sweetener that adds a rich, unique flavor; agave nectar can substitute for a vegan option.
Heavy cream – Adjusts frosting consistency; use milk for a lighter version if desired.
Maple extract – Enhances the maple flavor in the frosting, though it’s optional for those who prefer a lighter taste.

Step‑by‑Step Instructions for Oatmeal Raisin Cookie Bars

Step 1: Preheat and Prepare
Preheat your oven to 350°F (175°C) and line a 9×9-inch baking pan with parchment paper, letting the edges hang over for easy removal later. This will ensure your Oatmeal Raisin Cookie Bars bake evenly and come out easily after baking.

Step 2: Whisk the Dry Ingredients
In a medium mixing bowl, whisk together the all-purpose flour, baking soda, ground cinnamon, and salt until well combined. This step not only incorporates the dry ingredients but also evenly distributes the baking soda and cinnamon, setting the foundation for the delightful flavors that will fill your cookie bars.

Step 3: Cream Butter and Sugar
In a large mixing bowl, use an electric mixer to beat the softened unsalted butter and brown sugar together on medium speed for 2-3 minutes. Aim for a light and fluffy texture, which will create a rich flavor profile for your Oatmeal Raisin Cookie Bars. Scrape the bowl’s sides as needed to ensure even mixing.

Step 4: Incorporate Eggs and Vanilla
Add the room-temperature eggs, one at a time, mixing well after each addition. Then, pour in the vanilla extract and mix until everything is fully combined. The eggs will help bind your ingredients, creating a moist and chewy texture for your bars.

Step 5: Blend Dry and Wet Ingredients
Gradually add the dry flour mixture to the wet ingredients, mixing on low speed until just combined. Be careful not to overmix; you want to preserve the tender bite of your Oatmeal Raisin Cookie Bars. Gently fold in old-fashioned oats and raisins with a spatula until they are evenly distributed.

Step 6: Spread and Bake
Pour the cookie mixture into your prepared baking pan and spread it evenly using a spatula. Bake in the preheated oven for 18-20 minutes, or until the edges turn a golden brown and the center is set but still soft to the touch. Trust your senses—smell the warm, inviting aroma filling your kitchen!

Step 7: Cool the Bars
Once baked, remove the pan from the oven and allow it to cool in the pan for 5-10 minutes. Then, gently lift the bars out using the parchment overhang and transfer them to a wire rack to cool completely before frosting. This step ensures your delicious Oatmeal Raisin Cookie Bars hold their shape and texture.

Step 8: Prepare the Frosting
For the frosting, beat the softened butter in a mixing bowl until smooth. Gradually add the powdered sugar, maple syrup, heavy cream, and a pinch of cinnamon, mixing until creamy and well combined. The frosting should have a velvety texture that will beautifully complement the chewy bars.

Step 9: Frost and Serve
Once the cookie bars are completely cool, spread the creamy maple-cinnamon frosting evenly over the top. Using a sharp knife, slice into squares or rectangles, and serve! These Oatmeal Raisin Cookie Bars, topped with luscious frosting, are the perfect treat for gatherings or a cozy night in.

Oatmeal Raisin Cookie Bars Variations

Customize these delightful bars to suit your taste buds and create your perfect dessert masterpiece!

Chocolate Chip Swaps: Replace raisins with chocolate chips for a sweeter, indulgent twist. Each bite becomes a chocolatey delight that satisfies your sweet cravings.
Nutty Crunch: Add a mixture of chopped nuts, like walnuts or pecans, for extra crunch and flavor. This variation not only enhances the texture but also brings a wholesome nuttiness to the recipe.
Vegan Option: Substitute coconut oil for butter and use flax eggs instead of traditional eggs for a plant-based treat. The rich flavors will still shine, keeping your cookies wonderfully chewy.
Dried Fruits Medley: Mix in other dried fruits like cranberries or apricots for a fruity burst. This adds a colorful twist and an exciting complexity that keeps your taste buds guessing.
Spicy Kick: Boost the flavor profile with a pinch of nutmeg or ginger alongside the cinnamon. This warms the cookies up even more, making them perfect for chilly evenings.
Salted Caramel Touch: Top the frosting with a drizzle of caramel sauce and a sprinkle of sea salt for that perfect sweet-and-salty combination. It’ll surely elevate your dessert experience to new heights.
Flavored Frosting: Swap maple syrup in the frosting for honey or even a flavored syrup, like vanilla or hazelnut. This simple change can take your frosting from delightful to extraordinary.
Coconut Delight: Stir shredded coconut into the batter for a tropical influence. It adds both texture and a slight sweetness that pairs wonderfully with oatmeal’s heartiness.

If you love experimenting, don’t forget to check out these delicious Banana Oatmeal Cookies or the luscious Flourless Dark Cookies for more inspiration!

What to Serve with Chewy Oatmeal Raisin Cookie Bars with Luscious Maple-Cinnamon Frosting

Imagine the joy of a cozy evening with these delightful treats, each bite offering a blend of warmth and sweetness.

Creamy Vanilla Ice Cream: The cold creaminess contrasts beautifully with the chewy bars, creating a delightful temperature and texture experience.
Fresh Fruit Salad: A mix of vibrant fruits adds a refreshing element; the natural sweetness offers a lovely balance to the bars’ rich flavors. Slices of strawberries or a handful of blueberries on the side create a colorful, inviting plate.
Homemade Hot Chocolate: Rich and velvety hot chocolate envelops your senses as you indulge in the bars. It enhances the nostalgic vibes, making every moment special.
Spiced Chai Latte: Aromatic spices bring warmth and pairs wonderfully, enhancing the cinnamon notes in the bars. The creamy texture compliments the bar’s chewiness perfectly.
Chopped Nuts: Sprinkling toasted walnuts or pecans on top of the bars gives additional crunch and flavor. It’s a textural contrast that elevates your dessert experience.
Dulce de Leche Drizzle: A sweet drizzle over the bars adds a caramel-like richness that harmonizes beautifully with the oats and raisins. It’s a decadent touch that’s hard to resist!
Milk: A classic pairing that never fails! Whether whole, almond, or oat milk, a chilled glass refreshes your palate and enhances the sweetness of the bars.
Coffee: A cup of rich, brewed coffee elevates the dessert experience. Its bitterness complements the sweetness of the bars superbly, making it a perfect afternoon snack.
Caramel Dipping Sauce: A warm caramel sauce brings an extra layer of indulgence. Dipping bites into it elevates the experience and adds a luxurious touch, perfect for special occasions.
Cheese Plate: Combine creamy brie or sharp cheddar with your cookie bars for a unique twist—savory meets sweet for an unforgettable contrast!

How to Store and Freeze Oatmeal Raisin Cookie Bars

Room Temperature: Store Oatmeal Raisin Cookie Bars in an airtight container at room temperature for up to one week, ensuring they stay soft and chewy.
Fridge: For longer freshness, place the bars in the refrigerator. They can be stored there for up to two weeks; just remember to let them come to room temperature before serving.
Freezer: Freeze the cooled, unfrosted bars by wrapping them tightly in plastic wrap and then placing them in a freezer-safe bag. They can be frozen for up to three months.
Reheating: To enjoy frozen bars, thaw them overnight in the refrigerator, then bring them to room temperature or warm them slightly in the microwave for a comforting treat!

Expert Tips for Oatmeal Raisin Cookie Bars

Softened Butter: Ensure your butter is softened to room temperature, not melted, to achieve the perfect creamy texture in your bars.
Avoid Overmixing: Mix the dough only until combined after adding dry ingredients. Overmixing can result in a tough, dry bar.
Baking Time: Keep an eye on your bars while baking; they should be golden at the edges and set in the center, yielding a chewy result.
Room Temperature Eggs: Use eggs at room temperature for better incorporation into the batter, leading to a more uniform texture in your Oatmeal Raisin Cookie Bars.
Ingredient Substitutions: Get creative! Try substituting raisins with chocolate chips or adding nuts for a personalized twist, enhancing flavors.
Storing Tips: Keep any leftovers in an airtight container at room temperature for up to a week, ensuring they remain moist and delicious.

Make Ahead Options

These Oatmeal Raisin Cookie Bars are fantastic for meal prep, allowing you to savor homemade goodness without the last-minute rush! You can prepare the dough up to 24 hours in advance—simply mix the ingredients as directed and refrigerate in an airtight container. The bars can also be baked and cooled, then stored at room temperature for up to 3 days before frosting. To maintain their chewy texture, ensure they are stored in an airtight container lined with parchment paper. When ready to enjoy, frost the cooled bars, slice them into squares, and let the comforting flavors bring joy to your busy day!

Oatmeal Raisin Cookie Bars Recipe FAQs

What kind of oats should I use for Oatmeal Raisin Cookie Bars?
For the best texture, it is recommended to use old-fashioned oats as they provide chewiness to the bars. Avoid using instant oats, as they may lead to a different consistency and a less satisfying bite.

How should I store Oatmeal Raisin Cookie Bars?
Store your Oatmeal Raisin Cookie Bars in an airtight container at room temperature for up to one week. For extra freshness, you can refrigerate them where they will last about two weeks. Just remember, they’re best enjoyed at room temperature!

Can I freeze Oatmeal Raisin Cookie Bars?
Absolutely! To freeze the bars, allow them to cool completely, and then wrap them tightly in plastic wrap before placing them in a freezer-safe bag. They will stay fresh for up to three months. When you’re ready to enjoy them, simply thaw overnight in the fridge, then allow them to come to room temperature or warm them slightly in the microwave.

What if my Oatmeal Raisin Cookie Bars come out dry?
If your bars turn out dry, it could be due to overmixing the dough after adding the dry ingredients. Be sure to mix until just combined to maintain their chewy texture. Also, check your baking time; removing them from the oven when the edges are golden and the center is set but soft will help ensure a moist result.

Can dogs eat Oatmeal Raisin Cookie Bars?
No, it’s not safe for dogs to eat Oatmeal Raisin Cookie Bars as they contain raisins, which can be toxic to dogs. If you want to share a treat with your furry friend, consider making a dog-safe recipe with oat flour and peanut butter!

What if I have allergies to some ingredients?
If anyone has allergies, consider alternative substitutions. You can use coconut oil instead of butter for a dairy-free option, or try nut-free alternatives like sunflower seed butter if nut allergies are a concern. For gluten sensitivities, use gluten-free all-purpose flour. Always check the labels to ensure the alternatives are safe for your dietary needs.