1 1/2
cups unbleached all purpose flour
1 teaspoon
baking powder
1/2 teaspoon
baking soda
1 teaspoon
kosher salt
1 3/4
sticks (7 ounces) unsalted butter, room temperature
1 cup
granulated sugar
1/2 cup
light brown sugar
1
egg
1 teaspoon
vanilla extract
1
cup semi-sweet chocolate chips, chopped chocolate candies, or a small bar of good dark chocolate, chopped into chunks
1/2 cup
chopped pecans or other nuts, optional