INGREDIENTS
2 1/4 cups
all-purpose flour
1 tsp
baking soda
2 tsp
cornstarch
1/2 tsp
salt
3/4 cup
packed brown sugar
1/2 cup
granulated sugar
3/4 cup
unsalted butter (, melted)
1
large egg
1
large egg yolk
1 tbsp
vanilla extract
1 cup
semi-sweet chocolate chips plus more for topping