Brown Butter Chocolate Chip Cookie Bars

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5 from 1 review



6 oz (12 Tablespoons butter), melted, browned and slightly cooled

3/41 cup brown sugar

2 eggs, room temperature

1 1/2 teaspoons vanilla extract

1 1/2 cups all purpose flour

1 teaspoon baking powder

1/4 teaspoon baking soda

1/2 teaspoon salt

1 cup semi sweet chocolate chips


  1. Preheat the oven to 350 degrees Fahrenheit. Grease the sides of a 9 x 13 inch metal baking dish. Line the longer sides of the baking pan with parchment paper, overhanging it on both sides, so it’ll be easier to take them out later.
  2. Brown the butter in a skillet. Melt the butter, then cook on medium low heat, scraping the bottom of the skillet to release the brown butter bits. Be careful not to burn the butter. Cool slightly.
  3. Pour the butter into a large bowl. Add the brown sugar and whisk to combine. Add the eggs and vanilla and mix for at least a minute, until it becomes smooth and satiny.
  4. In a medium bowl, combine the flour, baking powder, baking soda and salt.
  5. Add the dry ingredients to the batter. Mix to combine, until the flour is incorporated.
  6. Lastly, add the chocolate chips and also mix to combine.
  7. Transfer the cookie batter into the prepared baking pan and spread it out evenly. The batter is thick and sticky, so it’s a bit challenging to spread out, just take your time.
  8. Bake in the preheated oven for 18-25 minutes. The top should be shiny, cracked and slightly golden brown. Do not overbake. The center should look slightly underdone. The cookie bars will continue baking for a few more minutes even after taking them out of the oven.
  9. Let the cookie bars stay in the baking dish for another 5-10 minutes before taking them out. Pull them out using the parchment paper to lift them out of the pan. Cut them into bars.


If you’re not serving the cookie bars right away, store them in the baking pan until you are ready to cut and serve them so they stay fresh longer.

They are best eaten the same day, but you can store leftovers in the same baking dish, covered or in an airtight container, or a large ziplock bag.

You can also freeze the chocolate chip cookie bars for up to 3 months.