Chocolate Chip Brownie Swirl Cookies

What happens when a cookie and a brownie meet? Chocolate Chip Brownie Swirl Cookies. also known as Brookies by some! These cookies are the best of both worlds.
·         *Prepare chocolate chip cookie recipe first; it needs to chill while you prepare the brownie cookie dough.
·         For the Chocolate Chip Cookie:
·         1 and 1/4 cups all-purpose flour
·         1/2 teaspoon baking soda
·         1/4 teaspoon flaky sea salt (regular salt will work in a pinch)
·         7 tablespoons unsalted butter, at room temperature
·         1/2 cup packed dark brown sugar
·         1/4 cup granulated sugar
·         1 teaspoon vanilla
·         1 large egg
·         3/4 cup semi-sweet chocolate chips
·         For the Brownie Cookie:
·         6 tablespoons unsalted butter, melted
·         1/2 cup semi-sweet chocolate chips, melted
·         1 cup all-purpose flour
·         2 tablespoons unsweetened cocoa powder
·         1/2 teaspoon baking soda
·         1/4 teaspoon salt
·         1/2 cup packed dark brown sugar
·         1/4 cup granulated sugar
·         1 teaspoon pure vanilla extract
·         1 large egg + 1 egg yolk, at room temperature
·         3/4 cup milk chocolate chips

1.    For the Chocolate Chip Cookie:
2.    In a medium-sized bowl whisk together the flour, baking soda, and sea salt; set aside.
3.    In a large bowl using a handheld electric mixer, or in the bowl of a stand mixer fitted with the paddle attachment, beat the *room temperature butter on medium-speed until smooth. add in the sugars and vanilla and beat on medium-speed until the mixture is pale and fluffy; about 2 minutes.