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Iced Oatmeal Cookie Bars Recipe

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If you’re looking for a sweet treat that feels like a warm hug, these Iced Oatmeal Cookie Bars are just what you need! They strike the perfect balance between chewy and moist, with just the right amount of spice to make your taste buds dance. This recipe is my go-to for everything from busy weeknights to family gatherings—everyone loves them, and they disappear faster than you can say “cookie bar”!

What makes these bars truly special is their easy preparation. Just throw everything together in one pan, bake, and drizzle with a simple glaze. Perfect for sharing with friends or indulging all by yourself during your afternoon coffee break!

Why You’ll Love This Recipe

  • Quick to Make: With only 15 minutes of prep time, you’ll have delicious bars ready to enjoy in no time!
  • Family-Friendly: These cookie bars are a hit with kids and adults alike—perfect for lunchboxes or after-school snacks.
  • One-Pan Wonder: Minimal cleanup means more time savoring these delightful treats!
  • Versatile Flavor: The warm spices and sweet glaze make them suitable for any occasion, from cozy evenings to festive celebrations.
  • Make Ahead: Bake a batch ahead of time and store them; they stay fresh and delicious for days!
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Ingredients You’ll Need

These iced oatmeal cookie bars use simple, wholesome ingredients that you probably already have in your pantry. Let’s gather what you need to create this delightful treat!

For the Cookie Base

  • 1/2 cup (113 g) unsalted butter, melted and slightly cooled
  • 1 cup (95 g) old fashioned oats
  • 1 cup plus 2 tablespoons (140 g) all-purpose flour, spooned and leveled
  • 1 teaspoon baking soda
  • 1 teaspoon cinnamon
  • 1/2 teaspoon salt
  • 1/2 cup (100 g) granulated sugar
  • 1/2 cup (100 g) light brown sugar, packed
  • 1 large egg, room temperature
  • 1 teaspoon vanilla extract
  • 1 tablespoon molasses (or honey)

For the Icing

  • 1/2 cup (60 g) powdered sugar, sifted
  • 1 to 2 tablespoons whole milk
  • 1/4 teaspoon vanilla extract

Variations

This recipe is wonderfully flexible, allowing you to customize it according to your preferences. Here are some fun variations to try!

  • Add Nuts: Toss in some chopped walnuts or pecans for an extra crunch.
  • Dried Fruit Delight: Mix in raisins or dried cranberries for a fruity twist.
  • Spice It Up: Experiment with other spices like nutmeg or ginger to create your own signature flavor.
  • Gluten-Free Option: Substitute the all-purpose flour with a gluten-free blend for a tasty alternative.

How to Make Iced Oatmeal Cookie Bars Recipe

Step 1: Preheat the Oven

Preheat your oven to 350°F. While it warms up, line an 8 x 8 inch baking pan with parchment paper. This makes it easy to lift out the bars later without any fuss!

Step 2: Prepare the Oats

Melt the butter in a medium bowl and let it cool slightly. Meanwhile, pulse the oats in a food processor until they are broken into smaller bits—this adds texture without turning them into flour.

Step 3: Combine Dry Ingredients

In another bowl, whisk together the pulsed oats, flour, baking soda, cinnamon, and salt. Mixing these dry ingredients separately ensures even distribution of flavors throughout your bars.

Step 4: Cream Butter and Sugars

To the melted butter, add both granulated and brown sugars. Mix on low speed or whisk until combined—it should resemble wet sand. This step is crucial as it helps create that perfectly chewy texture.

Step 5: Add Wet Ingredients

Now it’s time to add in the egg, vanilla extract, and molasses. Mix until well combined; this will give your cookie bars moisture and sweetness.

Step 6: Fold in Dry Ingredients

Gently fold the dry mixture into the wet mixture using a spatula or wooden spoon—be careful not to overmix! Just combine until there are no dry spots.

Step 7: Bake!

Transfer your dough into the prepared baking pan and spread it evenly. Bake for about 20-24 minutes until golden brown around the edges—keep an eye on them so they don’t overbake!

Step 8: Cool Before Icing

Once baked, remove your cookie bars from the oven and let them cool on a wire rack for about 1-2 hours until they reach room temperature. Cooling is essential before icing; otherwise, it will melt off!

Pro Tips for Making Iced Oatmeal Cookie Bars Recipe

To ensure your iced oatmeal cookie bars turn out perfectly every time, keep these helpful tips in mind!

  • Use room temperature egg: A room temperature egg integrates more smoothly into the batter, resulting in a better texture.
  • Don’t overmix: Gently fold the dry ingredients into the wet mixture to avoid tough bars; overmixing can develop gluten and make them chewy instead of soft.
  • Check for doneness: Use a toothpick inserted into the center; it should come out with a few moist crumbs, not wet batter, to ensure the bars are perfectly baked.
  • Cool completely before icing: Allowing the bars to cool fully prevents the icing from melting and ensures it sets nicely on top.
  • Store properly: Keep any leftovers in an airtight container at room temperature or in the fridge for longer freshness.

How to Serve Iced Oatmeal Cookie Bars Recipe

These iced oatmeal cookie bars are delightful on their own, but with a few simple additions, you can elevate your presentation and flavor!

Garnishes

  • Chopped nuts: Sprinkle some chopped walnuts or pecans on top of the icing for added crunch and flavor.
  • Cinnamon dusting: A light dusting of cinnamon can enhance the spiced flavor profile and add visual appeal.

Side Dishes

  • Fresh fruit salad: A mix of seasonal fruits adds brightness and balances the sweetness of the bars.
  • Yogurt parfait: Layered yogurt with granola and berries complements the flavors of the cookie bars while providing a creamy contrast.
  • Coffee or tea: A warm cup of coffee or herbal tea makes for a comforting pairing that enhances your snack experience.
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Make Ahead and Storage

These iced oatmeal cookie bars are perfect for meal prep! You can easily make them ahead of time and store them for later enjoyment.

Storing Leftovers

  • Store the cooled bars in an airtight container at room temperature for up to 3 days.
  • For longer freshness, store them in the refrigerator where they will last about a week.

Freezing

  • Wrap each bar individually in plastic wrap or aluminum foil.
  • Place wrapped bars in a freezer-safe container or zip-top bag.
  • They can be frozen for up to 3 months. Just thaw at room temperature when you’re ready to enjoy!

Reheating

  • If you prefer warm bars, microwave individual portions for about 10-15 seconds until warmed through.
  • Alternatively, you can reheat the entire batch in a preheated oven at 350°F for about 5-10 minutes.

FAQs

Can I use quick oats instead of old fashioned oats in the Iced Oatmeal Cookie Bars Recipe?

Yes, while old fashioned oats give a chewier texture, you can substitute quick oats if necessary. Just keep an eye on the baking time as they may bake slightly faster.

How long does it take to prepare the Iced Oatmeal Cookie Bars Recipe?

The total preparation time is about 35 minutes, which includes both prep and baking time. It’s a quick and easy recipe that’s great for any occasion!

What can I use instead of molasses in this recipe?

If you don’t have molasses on hand, honey or maple syrup can be good alternatives. They will slightly change the flavor but will still keep your bars deliciously sweet!

Final Thoughts

I hope you enjoy making these delightful iced oatmeal cookie bars as much as I do! They’re not only easy to prepare but also perfect for sharing with friends and family. Whether enjoyed with a cup of tea or as a midday snack, these bars bring warmth and comfort to any day. Happy baking!

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Iced Oatmeal Cookie Bars

Iced Oatmeal Cookie Bars Recipe
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Indulge in the comforting flavors of Iced Oatmeal Cookie Bars, a delightful treat that combines chewy texture and warm spices with a sweet glaze. These bars are perfect for any occasion, whether you’re hosting a family gathering or simply enjoying a cozy afternoon snack. With just one pan required and minimal cleanup, this recipe is as convenient as it is delicious. The bars are quick to prepare—ready in just 35 minutes—and can be customized with your favorite mix-ins like nuts or dried fruit. Enjoy them fresh or make ahead for easy snacking throughout the week!

  • Author: Chef Adrian Vale
  • Prep Time: 15 minutes
  • Cook Time: 20-24 minutes
  • Total Time: 0 hours
  • Yield: Approximately 12 servings 1x
  • Category: Dessert
  • Method: Baking
  • Cuisine: American

Ingredients

Scale
  • 1/2 cup unsalted butter, melted and slightly cooled
  • 1 cup old fashioned oats
  • 1 cup plus 2 tablespoons all-purpose flour
  • 1 teaspoon baking soda
  • 1 teaspoon cinnamon
  • 1/2 teaspoon salt
  • 1/2 cup granulated sugar
  • 1/2 cup light brown sugar, packed
  • 1 large egg, room temperature
  • 1 teaspoon vanilla extract
  • 1 tablespoon molasses or honey
  • 1/2 cup powdered sugar, sifted
  • 1 to 2 tablespoons whole milk
  • 1/4 teaspoon vanilla extract

Instructions

  1. Preheat oven to 350°F and line an 8×8 inch baking pan with parchment paper.
  2. Melt butter and let cool slightly; pulse oats in a food processor until broken into smaller bits.
  3. In a separate bowl, whisk together oats, flour, baking soda, cinnamon, and salt.
  4. Mix melted butter with granulated and brown sugars until combined.
  5. Stir in egg, vanilla extract, and molasses until well blended.
  6. Gently fold the dry mixture into the wet ingredients until just combined.
  7. Spread dough evenly in the prepared pan and bake for 20-24 minutes until golden.
  8. Cool on a wire rack for 1-2 hours before icing.

Nutrition

  • Serving Size: 1 serving
  • Calories: 180
  • Sugar: 12g
  • Sodium: 100mg
  • Fat: 8g
  • Saturated Fat: 4g
  • Unsaturated Fat: 3g
  • Trans Fat: 0g
  • Carbohydrates: 27g
  • Fiber: 1g
  • Protein: 2g
  • Cholesterol: 25mg

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