INGREDIENTS
2 sticks
cold and cubed unsalted butter
1 cup
granulated sugar
1 cup
light brown sugar
2
eggs
1 tsp
pure vanilla extract
2 3/4 cups
all purpose flour
1 tsp
table or fine sea salt
1 tsp
baking powder
1/4 tsp
baking soda
2 1/2 cups
good quality semisweet chocolate chips or chunks
1 cup
chopped walnuts (optional)