Ingredients
Method
Preparation
- In a large bowl, whisk together the flour, baking soda, cornstarch, and salt. Set aside.
- In a medium bowl, whisk the melted butter, brown sugar, and granulated sugar until there are no lumps. Add the egg, egg yolk, and vanilla extract, and mix until combined.
- Pour the wet ingredients into the dry ingredients and stir until a smooth, thick, and shiny dough forms.
- Fold in chocolate chips until evenly distributed.
- Cover the dough tightly and refrigerate for at least 2 hours or up to 3 days.
Baking
- Preheat the oven to 325°F (163°C). Line baking sheets with parchment paper.
- Let the chilled dough sit at room temperature for 15 minutes if chilled for longer than 2 hours.
- Scoop dough using a cookie scoop or tablespoon, and roll into a taller shape to promote thickness.
- Arrange cookies 3 inches apart on the baking sheets.
- Bake for 13-14 minutes, until edges are lightly browned and centers remain soft. Cool for 10 minutes before transferring to a rack.
- Press extra chocolate chips on top if desired while warm.
Notes
Store cookies in an airtight container at room temperature for up to 1 week. For freezing, freeze uncooked dough balls and bake straight from the freezer with added time.