Chonklate Chip Cookies

Makes 16 very large chocolate chip cookies. Based on Joshua Weissman's recipe which was imitating the Levain Bakery chocolate chip walnut cookies.

1.25 c butter melt mix mix mix refrigerate overnight bake at 400°F for ~18 minutes
285 g light brown sugar
115 g granulated sugar
2 eggs + 3 yolks
2 tsp vanilla extract
480 g all-purpose flour mix
35 g corn starch
1/2 tsp baking soda
6 g salt
9 oz dark chocolate chop
120 g walnuts chop