INGREDIENTS
1 lb
unsalted butter
1 3/4 cups
granulated sugar
2 1/4 cups
packed light-brown sugar
4
large eggs
3 cups
plus 2 tablespoons pastry flour
3 cups
bread flour
1 tbsp
salt
2 tsp
baking powder
2 tsp
baking soda
1 tbsp
pure vanilla extract
2 lb
bittersweet chocolate, coarsely chopped