Oatmeal Chocolate Chip Cookie Bars
Soft and chewy Oatmeal Chocolate Chip Cookie Bars made with brown sugar, old-fashioned oats, and melty chocolate in every bite.
Equipment
- 8x8-inch baking pan
- parchment paper
- mixing bowl
- Whisk
- rubber spatula
- Measuring cups
- Measuring spoons
- Kitchen scale (optional)
Ingredients
- ½ cup butter, melted 113g
- 2 tablespoons canola oil 28g
- ¾ cup dark brown sugar 160g
- ¼ cup granulated sugar 50g
- 1 tablespoon honey 21g
- 2 teaspoons vanilla extract
- 1 egg
- 1 egg yolk
- 1 ¼ cup all-purpose flour 160g
- 1 ¼ cup old-fashioned oats 120g
- ½ teaspoon baking soda
- ½ teaspoon salt
- ½ cup semi-sweet chocolate, chopped 85g
- ½ cup milk chocolate chips 85g
- flaky sea salt for finishing
Instructions
- Preheat the oven to 350°F. Lightly spray an 8x8-inch baking pan with baking spray and line with parchment paper.
- In a medium mixing bowl, whisk together the melted and slightly cooled butter, canola oil, brown sugar, and granulated sugar until smooth and combined.
- Whisk in the egg, egg yolk, honey, and vanilla extract until fully incorporated.
- Add the flour, oats, baking soda, and salt, mixing just until combined. Fold in both chocolates, reserving a small handful to sprinkle on top.
- Gently spread the dough into the prepared pan, smoothing to the edges without packing it down. Sprinkle the reserved chocolate over the top. Bake for 18-20 minutes, until the edges are lightly golden and the center has puffed slightly.
- Finish with a sprinkle of flaky sea salt while still warm. Let cool completely, then lift out and slice into bars.
Notes
Storage: Store in an airtight container at room temperature for 3–5 days. These bars stay especially soft and chewy. If you’d like to keep them longer, refrigerate for up to 1 week or freeze for up to 2 months.
For softer, chewier bars, stick to the shorter end of the bake time. The centers will be slightly underbaked and will continue to set as they cool. For crispier edges and firmer bars, add a couple of extra minutes to the bake time.
You can use any combination of chocolates or just one type. This recipe is easy to customize with your favorite mix-ins — just try to keep the total around 1 cup so the bars bake evenly and stay chewy.