These oatmeal chocolate chip cookie bars are soft, chewy and always a hit! With just a few minutes of prep, they’re out of the oven quickly!

I’ve been making these easy oatmeal chocolate chip cookie bars for almost 20 years. Talk about a tried-and-true favorite!

They are easy, no-fuss, and they will always be one of my favorite cookie bars ever. 

cup up chocolate chunk bars stacked in a white ramekin

Soft and chewy, they are a perfect alternative to scooping out tray after tray of oatmeal chocolate chip cookies.

I just love cookies in bar form. I really do.

cut chocolate chip bar laying next to white bowl
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Oatmeal Chocolate Chunk Bars

4.56 stars (25 ratings)


  • ¾ cup (170 g) butter, softened OR melted (see note)
  • ½ cup (106 g) granulated sugar
  • ½ cup (106 g) lightly packed brown sugar
  • 1 large egg
  • 1 large egg yolk
  • 1 teaspoon vanilla extract
  • 1 teaspoon baking soda
  • ¼ teaspoon salt
  • 1 ¾ cups (249 g) all-purpose flour
  • 1 cup (100 g) quick oats or old-fashioned rolled oats
  • 2 cups (340 g) chocolate chips or chocolate chunks


  • Preheat oven to 350 degrees F. Lightly coat a 9X13-inch baking pan with cooking spray or line with parchment and lightly grease parchment and set aside.
  • In a large bowl, add the butter, granulated sugar, brown sugar, egg, egg yolk, baking soda and salt, and mix with an electric mixer (handheld or stand mixer) until well-combined.
  • Add the flour, oats and chocolate chips and mix until evenly combined.
  • Press the batter into the prepared pan and bake for 18-20 minutes. Don’t overbake! These bars are best underbaked by just a bit.


Butter: this recipe works just fine with softened OR melted butter. To take it up a notch, try browning the butter first. Amazing! Also, I always use salted butter.
Doubling: this recipe doubles great to fit in a half sheet pan (11X17-inch rimmed baking sheet).
Chocolate Chips: so many variations can be subbed in for these bars: peanut butter chips, butterscotch chips, mint chips.
Serving: 1 Bar, Calories: 185kcal, Carbohydrates: 24g, Protein: 2g, Fat: 9g, Saturated Fat: 6g, Cholesterol: 33mg, Sodium: 129mg, Fiber: 1g, Sugar: 14g
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Recipe Source: adapted from 24 Hour Menu