Oatmeal Raisin Cookie Bars

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There’s something so comforting about the sweet aroma of cinnamon and oats baking in the oven. These oatmeal raisin cookie bars bring all the cozy flavors of classic cookies into a thick, chewy bar form that’s perfect for sharing. Each bite is bursting with plump raisins and warm spices, making it ideal for lunchboxes, after-school snacks, or even as a nostalgic dessert.

What makes these bars special is how effortless they are to prepare. No scooping individual cookies or waiting for multiple trays to bake. Just press the dough into one pan, bake, and slice into satisfying squares. They’re soft yet hearty, with just the right touch of sweetness.

Why You’ll Love These Oatmeal Raisin Cookie Bars

You’ll love how easy these bars are to make while delivering all the classic oatmeal cookie flavor you crave. The chewy texture is irresistible, and they hold together beautifully for packing or serving at gatherings. Plus, they’re endlessly customizable if you want to add nuts, chocolate chips, or swap in dried cranberries.

Can I Use Quick Oats or Old-Fashioned Oats?

Great question! Old-fashioned rolled oats are preferred because they give the bars a chewy texture and nutty flavor. Quick oats can make the bars a little softer and less textured, but they’ll still taste great if that’s what you have on hand. Avoid using instant oats, as they’ll make the mixture too mushy.

Ingredients for the Oatmeal Raisin Cookie Bars

Rolled oats bring the signature chewy texture and nutty taste that makes these bars unforgettable. Brown sugar adds depth of flavor and moisture, while granulated sugar keeps the sweetness balanced. Butter gives richness and helps bind everything together. Eggs are essential for structure, and vanilla enhances the warm, comforting aroma. Raisins, of course, provide those sweet, juicy pops throughout each bite. Finally, flour, baking soda, cinnamon, and salt ensure a perfect cookie base with just the right hint of spice.

How To Make the Oatmeal Raisin Cookie Bars

Step 1: Preheat and Prep

Preheat your oven to 350°F and line a 9×13-inch baking pan with parchment paper or lightly grease it to prevent sticking.

Step 2: Mix the Dry Ingredients

In a medium bowl, whisk together the flour, cinnamon, baking soda, and salt. Set aside.

Step 3: Cream the Butter and Sugars

In a large mixing bowl, beat the softened butter, brown sugar, and granulated sugar until creamy and smooth. Add the eggs one at a time, then mix in the vanilla extract.

Step 4: Combine the Mixtures

Gradually stir the dry ingredients into the wet mixture. Once combined, fold in the rolled oats and raisins until evenly distributed.

Step 5: Bake the Bars

Press the dough evenly into the prepared baking pan. Bake for about 25-30 minutes, or until the edges are golden and a toothpick comes out clean from the center.

Step 6: Cool and Slice

Let the bars cool completely in the pan before lifting them out and cutting them into squares or rectangles. Enjoy!

Serving and Storing Oatmeal Raisin Cookie Bars

These oatmeal raisin cookie bars are perfect for serving at picnics, potlucks, or as a sweet treat after dinner. They’re sturdy enough to pack in lunchboxes or set out on a platter for guests. This recipe makes about 24 bars, making it great for feeding a crowd. Store the bars in an airtight container at room temperature for up to 4 days, or freeze them for longer storage.

What to Serve With Oatmeal Raisin Cookie Bars?

A Glass of Cold Milk

There’s nothing quite like enjoying a chewy oatmeal raisin bar with a cold glass of milk.

Fresh Fruit

Pair with sliced apples, grapes, or berries for a light and refreshing addition.

Hot Coffee or Tea

The warm spices in the bars are perfect alongside your favorite hot drink.

Ice Cream

Serve with a scoop of vanilla or cinnamon ice cream for an indulgent dessert.

Cheese Board

Surprise your guests by adding these bars to a cheese platter with sharp cheddar or creamy brie.

Greek Yogurt

Crumble a bar over a bowl of Greek yogurt with a drizzle of honey for a breakfast twist.

Nut Butter Spread

Spread a little almond or peanut butter on top of a bar for extra richness.

Want More Cookie Ideas with a Twist?

If you love these oatmeal raisin cookie bars, you’ll probably enjoy these other favorites from Mia Plates:

• Thick and Chewy Peanut Butter Cookies for a nutty classic.
• Cherry Topped Coconut Macaroons for a tropical bite.
• Ooey Gooey Bars when you crave something rich and indulgent.
• Best Cheesecake Deviled Strawberries for a fruity and creamy treat.
• Leftover Candy Shortbread Bars if you like a sweet surprise in every bite.

Save This Recipe For Later

📌 Save this recipe to your Pinterest dessert board so you can come back to it any time.

And let me know in the comments how yours turned out. Did you add walnuts or try chocolate chips instead of raisins? Did you cut them into small bites or big hearty squares?

I love hearing how others make these recipes their own. Questions are welcome too, let’s help each other bake smarter.

Explore beautifully curated health-boosting drinks and more cookie inspiration on Mia Recipes on Pinterest and discover your new go-to for feeling great!

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