Whisk together and set aside2 cups all-purpose flour1 teaspoon baking soda1 teaspoon baking powder1 teaspoon kosher saltCream wet ingredients1 cup unsalted butter, softened1 cup sugar1 cup dark brown sugar, firmly packed2 large eggs2 teaspoons vanillaThen stir in3 cups oats ( not instant)1½ cups raisinsPreheat oven to 350°.Whisk dry ingredients; set aside.Combine wet ingredients with a hand mixer on low.To cream, increase speed to high and beat until fluffy and the color lightens.Stir the flour mixture into the creamed mixture until no flour is visible.(Over mixing develops the gluten, making a tough cookie.) Now add the oats and raisins; stir to incorporate.Fill a #40 cookie scoop and press against side of bowl, pulling up to level dough (to measure 2 tablespoons of dough).