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brown butter chocolate chip cookie bars
Dessert

Brown Butter Chocolate Chip Cookie Bars

These Brown Butter Chocolate Chip Cookie Bars are perfectly chewy and packed with chocolate. Dark brown sugar, a bit of brown butter, and a hint of flaky sea salt make them extra special!
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Prep Time: 20 minutes
Cook Time: 25 minutes
Total Time: 45 minutes
Makes: 16 bars

Ingredients

  • 1 1/2 sticks (6 oz/170 g) unsalted butter
  • 2/3 cup (130 g) packed dark brown sugar
  • 1/3 cup (70 g) granulated sugar
  • 2 teaspoons vanilla extract
  • 1 egg, room temperature
  • 1 egg yolk, room temperature
  • 1 1/2 cups (190 g) all-purpose flour
  • 1 tablespoon (15 g) malted milk powder, optional
  • 1/2 teaspoon baking soda
  • 1/2 teaspoon baking powder
  • 1/2 teaspoon kosher salt
  • 6 oz milk chocolate,* chopped
  • 6 oz dark chocolate,* chopped
  • flaky sea salt

Instructions

  • Preheat an oven to 350 F. Lightly grease a metal 8x8 baking pan and line with a piece of parchment that slightly hangs over the side. Set aside.
  • Brown the butter. Add the butter to a small saucepan. Cook, swirling the butter occasionally, until golden brown with a nutty aroma. Pour the brown butter into a heat-safe mixing bowl and cool for 10 minutes.
  • Mix in sugar and eggs. Whisk both sugars into the butter until very smooth, about 2 minutes of whisking. Whisk in the egg, egg yolk, and vanilla until smooth.
  • Mix the dry ingredients. In a separate bowl, whisk together the flour, baking powder, baking soda, malted milk powder, and kosher salt.
  • Fold in the dry ingredients. Use a rubber spatula to fold the dry ingredients and chopped chocolate into the wet until mixed and no streaks of flour remain.
  • Bake. Press the cookie dough into the prepared pan and use a small offset spatula to spread the cookie dough into a smooth, even layer. Bake for 22-27 minutes, until the edges are slightly puffed and the center is just barely set (a little gooey is good!). Remove from the oven and sprinkle with flaky sea salt. Let the cookie cool for 45 minutes before removing from the pan and cutting into bars.

Notes

If you're not using chopped chocolate bars or feves, you can use chocolate chips. Just make sure they're high-quality. 

Nutrition

Calories: 295kcalCarbohydrates: 34gProtein: 3gFat: 17gSaturated Fat: 10gPolyunsaturated Fat: 1gMonounsaturated Fat: 4gTrans Fat: 0.4gCholesterol: 45mgSodium: 131mgPotassium: 140mgFiber: 1gSugar: 22gVitamin A: 300IUCalcium: 38mgIron: 2mg