Oatmeal Raisin Cookie Bars Recipe, Easy American Dessert in 45 Minutes

I still remember the first time I made these oatmeal raisin cookie bars recipe for a potluck. I was nervous because cookie bars can turn out dry or crumbly. But these came out perfectly chewy with soft raisins throughout. The vanilla icing was a last minute addition, and everyone asked for the recipe before they even finished their first piece. It is the kind of easy Oatmeal Raisin Cookie Bars dessert that feels like a hug from grandma. If you ever make my fluffy Japanese souffle pancakes, you know I love reliable sweet treats. These bars are exactly that.

Key Facts About Oatmeal Raisin Cookie Bars

What You Need for Oatmeal Raisin Cookie Bars Recipe

• 1/2 cup unsalted butter, softened
• 1/2 cup packed brown sugar
• 1/4 cup granulated sugar
• 1 large egg
• 1 teaspoon vanilla extract
• 1 cup all purpose flour
• 1 cup rolled oats
• 1/2 teaspoon baking soda
• 1/2 teaspoon cinnamon
• 1/4 teaspoon salt
• 3/4 cup raisins
• For the icing: 1/2 cup powdered sugar, 1 tablespoon milk, 1/4 teaspoon vanilla

For the best texture, use certified gluten free homemade Oatmeal Raisin Cookie Bars oats if needed. I recommend buying a good quality rolled oats for that essential chew. Do not use quick oats or steel cut oats here, they will change the texture completely.

How to Make Oatmeal Raisin Cookie Bars Recipe

Preheat your oven to 350F and line an 8×8 inch pan with parchment paper. Let the paper hang over two sides so you can lift the bars out later. In a large bowl, cream the softened butter with both sugars until light and fluffy, about 2 minutes with a hand mixer. Beat in the egg and vanilla until combined.

In a separate bowl, whisk the flour, oats, baking soda, cinnamon, and salt. Add the dry ingredients to the wet mixture and stir until just combined. Fold in the raisins. The dough will be thick and a little sticky. Press it evenly into the prepared pan using your hands or a spatula.

These bars feel similar to my Moroccan chicken tagine in the sense that simple ingredients create something deeply satisfying. The same principle applies here, humble oats and raisins become a dessert people crave.

Tips for Perfect Oatmeal Raisin Cookie Bars

Use Softened Butter, Not Melted

Softened butter creates a chewier bar. Melted butter makes them denser and greasy. Let it sit out for 30 minutes before you start. If you are in a hurry, cut the butter into small cubes and let it warm up for 15 minutes.

Do Not Overmix the Dough

Stir just until the flour disappears. Overmixing develops gluten, which makes bars tough instead of tender. Fold the raisins in by hand at the end to avoid crushing them.

Let the Bars Cool Completely Before Icing

Warm bars will melt the icing into a sticky mess. Be patient. Use this time to whip up a batch of my blueberry lemon ricotta pancakes for another breakfast treat. Once the bars are fully cool, the icing sits perfectly on top.

Frequently Asked Questions

I hope this oatmeal raisin cookie bars recipe becomes your new go to dessert. Drop a comment below and let me know if you add nuts or swap the raisins for something fun. I love hearing how you make recipes your own.

Chloe

Oatmeal Raisin Cookie Bars

oatmeal raisin cookie bars recipe made easy at home. Chewy, buttery oatmeal raisin cookie bars topped with a sweet vanilla icing—a classic comfort dessert mad

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 30 minutes mins

Total Time 45 minutes mins

Servings: 4 servings

Course: Dessert

Cuisine: American

Calories: 350

Ingredients Method

Ingredients

  

Cookie Base

• 1 cup unsalted butter softened to room temperature
• 1 cup packed light brown sugar
• 1/2 cup granulated sugar
• 2 large eggs room temperature
• 1 tsp vanilla extract
• 1 1/2 cups all-purpose flour
• 1 tsp baking soda
• 1 tsp ground cinnamon
• 1/2 tsp salt
• 3 cups old-fashioned rolled oats
• 1 cup raisins

Icing

• 1 cup powdered sugar sifted
• 2 tbsp milk or more for desired consistency
• 1/2 tsp vanilla extract

Method

 

1. Preheat your oven to 350°F (175°C). Line a 9x13-inch baking sheet with parchment paper, leaving overhang on two sides for easy removal.
2. In a large bowl, beat the softened butter, brown sugar, and granulated sugar together with an electric mixer on medium speed until light and fluffy, about 2-3 minutes.
3. Beat in the eggs one at a time, then add the vanilla extract, mixing until well combined.
4. In a separate medium bowl, whisk together the flour, baking soda, cinnamon, and salt. Gradually add the dry mixture to the wet mixture, mixing on low speed until just combined.
5. Using a spatula, fold in the rolled oats and raisins until evenly distributed throughout the dough.
6. Transfer the dough to the prepared baking sheet and press it evenly into a flat layer using your hands or a spatula. The dough should be about 1/2-inch thick.
7. Bake for 25-30 minutes, or until the edges are golden brown and the center is set. A toothpick inserted into the center should come out clean or with a few moist crumbs.
8. Allow the bars to cool completely in the pan on a wire rack, about 1 hour. This is essential for clean slicing.
9. In a small bowl, whisk together the sifted powdered sugar, milk, and vanilla extract until smooth. Adjust milk to reach a drizzling consistency.
10. Drizzle the icing over the cooled bars using a spoon or piping bag. Let the icing set for 10 minutes, then lift the bars out using the parchment overhang and cut into squares.

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If you made this Oatmeal Raisin Cookie Bars, please leave a comment below and let me know how it turned out.