Ingredients:

  • 1/2 cup (115g) unsalted butter, softened
  • 3/4 cup (150g) brown sugar, packed
  • 1/4 cup (50g) granulated sugar
  • 1 large egg
  • 1 tsp (5ml) vanilla extract
  • 1 1/2 cups (190g) all-purpose flour
  • 1 tsp (5g) ground cinnamon
  • 1/2 tsp (3g) baking soda
  • 1/4 tsp (1.5g) salt
  • 1 cup (90g) rolled oats
  • 1 cup (140g) Granny Smith apple, peeled and finely diced
  • 1 cup (120g) powdered sugar
  • 1 tbsp (15ml) milk
  • 1/4 tsp (1g) ground cinnamon
  • 1/2 tsp (2.5ml) vanilla extract

Instructions:

  1. Peel the apple and dice it into tiny, uniform cubes (roughly 1/4 inch). Pat dry with a paper towel if exceptionally juicy to prevent the cookies from spreading.
  2. Cream the softened butter, brown sugar, and granulated sugar until the mixture is pale and fluffy. Beat in the egg and vanilla extract.
  3. In a separate bowl, whisk together the all-purpose flour, cinnamon, baking soda, and salt.
  4. Slowly incorporate the dry ingredients into the wet mixture, then fold in the rolled oats and diced apples by hand until just combined.
  5. Scoop rounded tablespoons of dough onto parchment-lined baking sheets.
  6. Bake at 350°F (175°C) for 12-15 minutes until the edges are golden brown.
  7. Optional: Mix powdered sugar, milk, cinnamon, and vanilla to create a glaze and drizzle over cooled cookies.