Thick bakery-style chocolate walnut cookies with crisp edges and a soft, gooey center.
1 cup cold unsalted butter, cubed
3/4 cup granulated sugar
3/4 cup light brown sugar
2 large cold eggs
3 cups all-purpose flour
1 tablespoon cornstarch
1 teaspoon baking powder
1/2 teaspoon baking soda
3/4 teaspoon salt
2 cups semi-sweet chocolate chips
1 cup chopped walnuts
Preheat oven to 410°F and line baking sheet.
Cream cold butter with sugars until combined.
Add eggs one at a time.
Mix flour, cornstarch, baking powder, baking soda, and salt separately.
Combine dry ingredients with wet mixture.
Fold in chocolate chips and walnuts.
Form large dough mounds and place on baking sheet.
Bake 9 to 12 minutes until golden outside and soft inside.
Cool 10 minutes before serving.
Do not overbake for best gooey center. Form tall dough mounds for signature thickness.