Browned Butter Salted Chocolate Chip Cookies

INGREDIENTS

1 cup

butter (, diced into pieces (I used salted, if using unsalted increase salt to 3/4 tsp))

2 1/3 cups

all-purpose flour

2 tsp

cornstarch

1 tsp

baking soda

1/4 tsp

table salt

1 1/4 cups

packed light-brown sugar

1/3 cup

granulated sugar

1 tsp

vanilla extract

large eggs

2/3 cup

milk chocolate chips

2/3 cup

semi-sweet chocolate chips

2/3 cup

bittersweet chocolate chips

coarse or Maldon sea salt (, for topping)