These thick and chewy Chocolate Chip Cookie Bars are the ultimate mashup of a brownie and a cookie, loaded with chocolate chunks and a sprinkle of flaky sea salt.
Prep Time15 minutesmins
Cook Time25 minutesmins
Total Time40 minutesmins
Course: Dessert
Cuisine: American
Keyword: chocolate chip cookie bars, cookie bars
Servings: 24bars
Ingredients
1cupunsalted buttermelted and cooled slightly
1¼cupslight brown sugarpacked
½cupgranulated sugar
2large eggs
2teaspoonsvanilla extract
2¾cupsall-purpose flour
2teaspoonscornstarch
1teaspoonbaking soda
½teaspoonbaking powder
1teaspoonfine salt
2cupssemi-sweet chocolate chips(or chocolate chunks), divided into 1½ cups and ½ cup
Flaky sea saltfor finishing
Instructions
Preheat oven to 350°F. Grease and line a 9x13-inch metal baking pan with parchment paper.
In a large bowl, whisk together the melted butter, brown sugar, and granulated sugar until smooth.
1 cup unsalted butter, 1¼ cups light brown sugar, ½ cup granulated sugar
Whisk in the eggs and vanilla.
2 large eggs, 2 teaspoons vanilla extract
Add the flour, cornstarch, baking soda, baking powder, and salt. Stir just until combined.
2¾ cups all-purpose flour, 2 teaspoons cornstarch, 1 teaspoon baking soda, ½ teaspoon baking powder, 1 teaspoon fine salt
Fold in 1½ cups of the chocolate chips.
2 cups semi-sweet chocolate chips
Spread the dough evenly into the prepared pan and sprinkle the remaining chocolate chips over the top.
2 cups semi-sweet chocolate chips
Bake for 22–28 minutes, until the edges are lightly golden and the center is just set. (Cookies will continue to cook as they cool)
Cool completely in the pan and add optional flaky sea before slicing into squares.
Flaky sea salt
Notes
Use room-temperature eggs so the batter mixes together smoothly.
Slightly underbake for the chewiest texture.
A metal baking pan produces better browning than glass.
Store in an airtight container for up to 5 days, or freeze for up to 3 months. Warm individual squares in the microwave for 10–15 seconds before serving for a fresh-from-the-oven taste.