2 ½ c all-purpose flour 1 Tablespoon cinnamon 1 teaspoon baking soda ½ teaspoon baking powder ½ teaspoon salt ½ teaspoon ground ginger 1 c unsalted butter softened 1 c granulated sugar ½ cup brown sugar 2 large eggs room temperature 1 teaspoon vanilla extract 2 ½ c grated carrots about six medium carrots ½ cup chopped toasted walnuts