Ingredients:

  • 1 cup (225g) unsalted butter, softened
  • 1 cup (200g) packed light brown sugar
  • 1/2 cup (100g) granulated white sugar
  • 2 large eggs
  • 1 tsp (5ml) vanilla extract
  • 1 1/2 cups (190g) all-purpose flour
  • 1 tsp (5g) ground cinnamon
  • 1 tsp (5g) baking soda
  • 1/2 tsp (3g) salt
  • 3 cups (270g) old-fashioned rolled oats
  • 1 cup (150g) semi-sweet chocolate chips

Instructions:

  1. Cream together the softened butter, brown sugar, and white sugar. Beat on medium-high until the mixture looks pale and fluffy.
  2. Add eggs one at a time, stirring in the vanilla extract until the batter is smooth and velvety.
  3. In a separate bowl, whisk the flour, cinnamon, baking soda, and salt.
  4. Gradually pour the flour mixture into the wet ingredients. Stir on low speed or by hand just until the white streaks of flour disappear.
  5. Fold in the old-fashioned oats and chocolate chips until evenly distributed.
  6. Scoop rounded tablespoons of dough onto parchment-lined sheets, spacing them 2 inches apart.
  7. Bake at 350°F (175°C) for 10 minutes. Remove when edges are golden brown but centers still look slightly underbaked.
  8. Let the cookies set on the pan for 5 minutes to firm up before transferring to a wire rack.