Thick and Chewy Chocolate Chip Cookies

Adjust the oven racks to the upper- and lower-middle positions and heat the oven to 325 degrees. Line 2 large baking sheets with parchment paper or spray them with nonstick cooking spray.

Whisk the flour, baking soda, and salt together in a medium bowl set aside.

Either by hand or with an electric mixer, mix the butter and sugars until thoroughly blended. Beat in the egg, yolk, and vanilla until combined. Add the dry ingredients and beat at low speed just until combined. Stir in the chips to taste.

Using a cookie scoop or teaspoon, form dough into rough balls the size of walnuts and place on prepared cookie sheets, spacing 2 inches apart.

Bake until the cookies are lightly browned around the outer edges, about 10 minutes. Cool the cookies on the baking sheets.