Ingredients:

  • 6 cups Granny Smith or Honeycrisp apples, peeled and sliced 1/4 inch thick
  • 1/2 cup light brown sugar, packed
  • 1 tbsp cornstarch
  • 1 tsp ground cinnamon
  • 1 tbsp fresh lemon juice
  • 1/4 tsp salt
  • 1 cup old-fashioned rolled oats
  • 1 cup all-purpose flour
  • 1 cup dark brown sugar, packed
  • 1/2 cup unsalted butter, cold and cubed
  • 1 tsp ground cinnamon
  • 1/4 tsp salt

Instructions:

  1. Preheat your oven to 375°F (190°C).
  2. In a large mixing bowl, toss the sliced apples with lemon juice, light brown sugar, cinnamon, salt, and cornstarch until evenly coated in syrup.
  3. Pour the apple mixture into a 9x9 inch baking dish or cast iron skillet, spreading them flat.
  4. In a medium bowl, whisk together the rolled oats, all-purpose flour, dark brown sugar, cinnamon, and salt.
  5. Add the cold, cubed butter to the oat mixture. Use a pastry cutter or fingertips to work the butter in until pea-sized lumps form.
  6. Sprinkle the crumble evenly over the apple layer, leaving a small gap at the edges.
  7. Bake for 45–55 minutes, or until the fruit juices are bubbling and the topping is a deep mahogany gold.