Ingredients
Equipment
Method
- In a medium bowl, whisk together the flour, baking soda, cornstarch, and salt. Set aside.
- In a large bowl using a hand mixer or stand mixer with a paddle attachment, beat the softened butter, brown sugar, and granulated sugar together on medium speed until light and fluffy, about 3 minutes.
- Add the egg, egg yolk, and vanilla extract. Beat on low speed until combined.
- Slowly mix the dry ingredients into the wet ingredients on low speed until just combined. Do not overmix. Fold in the chocolate chips.
- Cover and chill the dough for at least 2 hours or up to 48 hours. This is essential for thick cookies.
- Preheat oven to 375°F (190°C). Line baking sheets with parchment paper. Roll dough into 2-tablespoon balls. Place 2-3 inches apart on the baking sheets. Bake for 10-12 minutes, until golden brown on the edges but still soft in the middle. Let cool on the baking sheet for 5 minutes before transferring to a wire rack to cool completely.
Notes
For best results, do not skip the chilling step. It prevents the cookies from spreading and deepens the flavor.
Sprinkle a little flaky sea salt on the dough balls before baking for a delicious sweet and salty flavor.
Sprinkle a little flaky sea salt on the dough balls before baking for a delicious sweet and salty flavor.
