INGREDIENTS
1 cup
brown sugar
1/2 cup
granulated sugar
3/4 cup
unsalted butter, melted
1
egg
1
egg yolk
1 tbsp
vanilla extract
2 cups
all-purpose flour
3/4 tsp
baking soda
1/2 tsp
kosher salt
2 cups
chocolate, roughly chopped (I like to use 1 cup dark and 1 cup semi-sweet or milk)
fleur de sel or sea salt, for sprinkling