Ingredients

  • 3 1/4 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1 teaspoon kosher salt
  • 1 cup sugar
  • 1 cup dark brown sugar, packed
  • 2/3 cup unsalted butter, softened
  • 2/3 cup vegetable shortening
  • 2 large eggs
  • 2 teaspoons vanilla
  • 2 cups semi-sweet chocolate chips
  • 1/2 cup milk chocolate chips

Method

  • Preheat oven to 350°F degrees.
  • 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 developes the gluten, making a tough cookie).
  • Now, stir in the semi-sweet and milk chocolate chips.
  • Use a cookie scoop (2 tbs per scoop) to measure and drop dough 2" apart onto an ungreased baking sheet.
  • Bake on center rack of oven 12-14 minutes, until lightly browned and edges are set.
  • Remove from oven; leave cookies on baking sheet for 2 minutes to firm up.
  • Transfer to a wire rack to cool.
  • If you are reusing the warm baking sheet, reduce baking time slightly.