Iced Oatmeal Cookie Bar Recipe
Iced Oatmeal Cookie Bar Recipe is a delightful treat that combines the wholesome goodness of oats with the sweet, creamy touch of icing. Perfect for any occasion, these bars are easy to make and sure to please both kids and adults alike. Their chewy texture paired with a rich icing makes them a standout dessert that you can enjoy at home or share at gatherings.
Why You’ll Love This Recipe
- Simple Preparation: With straightforward steps, even novice bakers can whip up these delicious bars without any hassle.
- Versatile Flavor: The combination of cinnamon and nutmeg gives these cookie bars a warm, inviting flavor that’s perfect year-round.
- Great for Any Occasion: Whether it’s a family gathering, a bake sale, or just a cozy night in, these bars fit right in.
- Customizable Icing: You can adjust the sweetness and flavor of the icing to suit your taste preferences, making it unique every time.
- Nutritious Ingredients: Packed with oats and eggs, these bars provide energy while satisfying your sweet tooth.
Tools and Preparation
To make the Iced Oatmeal Cookie Bar Recipe successfully, having the right tools on hand will make your baking experience enjoyable and efficient.
Essential Tools and Equipment
- Mixing Bowls
- Baking Pan (9×13 inch)
- Electric Mixer
- Measuring Cups and Spoons
- Rubber Spatula
Importance of Each Tool
- Mixing Bowls: A good set of mixing bowls allows you to easily combine ingredients without mess.
- Baking Pan (9×13 inch): This size is perfect for creating uniform cookie bars that bake evenly.
- Electric Mixer: It saves time and effort when creaming butter and sugars together for the batter.

Ingredients
For the Cookie Bars
- Unsalted Butter: 1 cup (2 sticks or 226g), softened to room temperature
- Light Brown Sugar: 1 cup (200g), packed
- Granulated Sugar: 1/2 cup (100g)
- Large Eggs: 2
- Vanilla Extract: 2 teaspoons
- All-Purpose Flour: 1 1/2 cups (180g)
- Baking Soda: 1 teaspoon
- Ground Cinnamon: 1 1/2 teaspoons
- Ground Nutmeg: 1/2 teaspoon (optional, but highly recommended)
- Salt: 1/2 teaspoon
- Old-Fashioned Rolled Oats: 3 cups (270g) (not instant or quick-cooking)
For the Icing
- Powdered Sugar: 2 cups (240g), sifted
- Milk or Cream: 3-4 tablespoons (whole milk or heavy cream recommended for richness)
- Vanilla Extract: 1 teaspoon
- Pinch of Salt: (optional, to balance sweetness)
How to Make Iced Oatmeal Cookie Bar Recipe
Step 1: Preheat the Oven
Preheat your oven to 350°F (175°C). Greasing your baking pan lightly will help prevent sticking.
Step 2: Cream Butter and Sugars
In a large mixing bowl, combine the softened butter, light brown sugar, and granulated sugar. Use an electric mixer on medium speed until the mixture is light and fluffy.
Step 3: Add Eggs and Vanilla
Add in the eggs one at a time, mixing well after each addition. Then stir in the vanilla extract until fully incorporated.
Step 4: Combine Dry Ingredients
In another bowl, whisk together flour, baking soda, cinnamon, nutmeg (if using), and salt. Gradually add this mixture into the wet ingredients while mixing on low speed until just combined.
Step 5: Fold in Oats
Gently fold in the rolled oats using a rubber spatula until they are evenly distributed throughout the dough.
Step 6: Bake
Pour the cookie batter into your prepared baking pan. Spread it evenly with the spatula. Bake for about 25-30 minutes or until golden brown around the edges. Allow cooling completely before icing.
Step 7: Prepare Icing
In a medium bowl, mix sifted powdered sugar with milk or cream until smooth. Stir in vanilla extract and a pinch of salt if desired for balance.
Step 8: Ice Your Bars
Once cooled, pour icing over your cookie bars and spread evenly. Let it set before cutting into squares or rectangles for serving. Enjoy your homemade Iced Oatmeal Cookie Bars!
How to Serve Iced Oatmeal Cookie Bar Recipe
Serving your Iced Oatmeal Cookie Bars can enhance their appeal and make your dessert experience even more delightful. Here are some delicious serving suggestions.
Pair with Coffee
- A warm cup of coffee complements the sweetness of the cookie bars perfectly. Choose a rich brew to balance flavors.
Add Fresh Fruit
- Topping your bars with fresh berries or sliced bananas adds a refreshing contrast and extra nutrition.
Serve with Ice Cream
- A scoop of vanilla ice cream on the side creates a deliciously creamy texture that pairs beautifully with the chewy cookie bars.
Drizzle with Caramel Sauce
- A light drizzle of caramel sauce can elevate the flavors, adding a sweet and buttery finish to each bite.
Garnish with Nuts
- Chopped walnuts or pecans sprinkled on top provide a crunchy texture that complements the softness of the cookies.
Enjoy with Milk
- A glass of cold milk is a classic pairing that enhances the overall taste experience, making it more enjoyable for all ages.
How to Perfect Iced Oatmeal Cookie Bar Recipe
Perfecting your Iced Oatmeal Cookie Bar Recipe is easy with just a few helpful tips. Follow these suggestions for the best results.
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Use room temperature butter: Softened butter blends better, giving you a smooth batter and fluffy cookie bars.
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Measure oats properly: Ensure you are using old-fashioned rolled oats for the best texture; avoid quick-cooking varieties that may alter the consistency.
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Don’t skip sifting powdered sugar: Sifting helps prevent lumps in your icing, resulting in a smoother finish on your cookie bars.
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Experiment with spices: Adding more cinnamon or nutmeg can enhance flavor depth; feel free to adjust based on your taste preferences.
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Let them cool completely before icing: This prevents the icing from melting into the warm bars, allowing for a neat presentation.
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Store properly: Keep leftover cookie bars in an airtight container at room temperature to maintain freshness for several days.
Best Side Dishes for Iced Oatmeal Cookie Bar Recipe
To create a well-rounded dessert experience, consider these side dishes that pair wonderfully with your Iced Oatmeal Cookie Bars.
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Yogurt Parfait: Layered yogurt with granola and fruits adds creaminess and crunch alongside your cookie bars.
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Fruit Salad: A refreshing mix of seasonal fruits provides a light contrast to the rich flavors of the cookie bars.
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Cheese Platter: Include mild cheeses like brie or gouda, which offer savory notes that balance sweetness nicely.
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Chocolate Fondue: Melted chocolate served with fruit or marshmallows allows guests to dip and enjoy an interactive dessert experience.
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Chia Seed Pudding: This healthy, creamy option can be flavored with vanilla or coconut to complement the oatmeal bars.
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Grilled Peaches: Caramelized peaches bring out natural sweetness and add warmth that goes well with iced treats.
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Nut Trail Mix: A crunchy mix of nuts and dried fruits can serve as a snack option, providing energy alongside dessert.
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Smoothie Bowl: A smoothie topped with nuts, seeds, and fresh fruit creates a nutritious side that balances out richer flavors.
Common Mistakes to Avoid
- Avoid overmixing the batter. Overmixing can lead to tough cookie bars. Mix just until combined for a tender texture.
- Don’t skip the sifting of powdered sugar. Sifting prevents lumps in your icing, ensuring a smooth and creamy finish.
- Be cautious with measuring flour. Too much flour can make your bars dry. Use the spoon-and-level method for accuracy.
- Don’t forget about proper cooling. Allow the cookie bars to cool completely before icing, or the glaze may melt.
- Avoid using instant oats. Stick to old-fashioned rolled oats as they provide the best texture and chewiness in your bars.

Storage & Reheating Instructions
Refrigerator Storage
- Store in an airtight container for up to 5 days.
- Keep layers separated with parchment paper to avoid sticking.
Freezing Iced Oatmeal Cookie Bar Recipe
- Freeze for up to 3 months.
- Wrap individual bars in plastic wrap and place them in a freezer-safe container.
Reheating Iced Oatmeal Cookie Bar Recipe
- Oven: Preheat to 350°F (175°C). Place bars on a baking sheet and warm for about 10 minutes.
- Microwave: Heat one bar at a time on low power for 15-20 seconds until warm.
- Stovetop: Place in a pan over low heat, cover, and warm for a few minutes.
Frequently Asked Questions
Here are some common queries regarding the Iced Oatmeal Cookie Bar Recipe.
What makes this Iced Oatmeal Cookie Bar Recipe special?
This recipe combines soft oatmeal cookie bars with a creamy icing, offering a delightful balance of flavors and textures.
Can I customize my Iced Oatmeal Cookie Bar Recipe?
Absolutely! You can add nuts, chocolate chips, or dried fruits to enhance flavor and texture according to your preferences.
How long do iced oatmeal cookie bars last?
When stored properly, these cookie bars can last up to 5 days in the refrigerator or up to 3 months in the freezer.
Is it possible to make this recipe dairy-free?
Yes! Substitute unsalted butter with plant-based butter and use non-dairy milk for the icing.
Final Thoughts
The Iced Oatmeal Cookie Bar Recipe is not only delicious but also versatile. With its rich flavor and chewy texture, it’s perfect for any occasion. Feel free to customize it with your favorite mix-ins like nuts or dried fruit. Give this recipe a try; you won’t be disappointed!
Iced Oatmeal Cookie Bar Recipe
Indulge in the delightful experience of our Iced Oatmeal Cookie Bar Recipe, where chewy oatmeal cookie bars meet a sweet, creamy icing. This easy-to-make dessert is perfect for any occasion—whether you’re hosting a family gathering, attending a bake sale, or simply enjoying a cozy night at home. With warm spices like cinnamon and nutmeg, these bars not only satisfy your sweet tooth but also offer a wholesome treat that everyone will love. Customize the icing to suit your taste preferences for a unique touch every time. Enjoy them fresh out of the oven or chilled; they’re sure to please both kids and adults alike.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
- Total Time: 45 minutes
- Yield: Approximately 12 servings 1x
- Category: Dessert
- Method: Baking
- Cuisine: American
Ingredients
- 1 cup unsalted butter, softened to room temperature
- 1 cup light brown sugar, packed
- 1/2 cup granulated sugar
- 2 large eggs
- 2 teaspoons vanilla extract
- 1 1/2 cups all-purpose flour
- 1 teaspoon baking soda
- 1 1/2 teaspoons ground cinnamon
- 1/2 teaspoon ground nutmeg (optional)
- 1/2 teaspoon salt
- 3 cups old-fashioned rolled oats
- 2 cups powdered sugar, sifted
- 3–4 tablespoons milk or cream
- 1 teaspoon vanilla extract for icing
- Pinch of salt for icing
Instructions
- Preheat your oven to 350°F (175°C) and lightly grease a 9×13 inch baking pan.
- In a mixing bowl, cream together softened butter, light brown sugar, and granulated sugar until light and fluffy.
- Add eggs one at a time, mixing well after each addition, then stir in vanilla extract.
- In another bowl, whisk together flour, baking soda, cinnamon, nutmeg (if using), and salt. Gradually mix into wet ingredients until just combined.
- Gently fold in rolled oats until evenly distributed in the dough.
- Pour batter into the prepared baking pan and spread evenly. Bake for 25-30 minutes or until golden brown around the edges. Let cool completely before icing.
- For icing, mix sifted powdered sugar with milk or cream until smooth; add vanilla extract.
- Once cooled, pour icing over cookie bars and spread evenly. Allow to set before cutting into squares.
Nutrition
- Serving Size: 1 bar (45g)
- Calories: 190
- Sugar: 12g
- Sodium: 90mg
- Fat: 9g
- Saturated Fat: 5g
- Unsaturated Fat: 4g
- Trans Fat: 0g
- Carbohydrates: 27g
- Fiber: 1g
- Protein: 2g
- Cholesterol: 30mg
