Preparation Steps

• Preheat oven to 375°F (190°C). Line baking sheets with parchment paper.
• In a large bowl, cream together the softened butter, granulated sugar, and brown sugar until light and fluffy.
  1 cup unsalted butter
• Beat in the eggs one at a time, then stir in the vanilla extract.
  1 cup unsalted butter
• In a separate medium bowl, whisk together the flour, baking soda, and salt.
  1 cup unsalted butter
• Gradually add the dry ingredients to the wet ingredients, mixing until just combined.
• Stir in the white chocolate chips and semi-sweet chocolate chips.
  1 cup unsalted butter
• Drop rounded tablespoons of dough onto the prepared baking sheets.
• Bake for 10-12 minutes, or until the edges are golden brown and the centers are still slightly soft.
• Let the cookies cool on the baking sheets for a few minutes before transferring them to a wire rack to cool completely.