Ingredients:

  • 6 large apples, peeled and sliced
  • 1/2 cup pure maple syrup
  • 2 tbsp cornstarch
  • 2 tbsp all-purpose flour
  • 1 tsp ground cinnamon
  • 1 tbsp lemon juice
  • 1 cup old-fashioned rolled oats
  • 1 cup all-purpose flour
  • 1/2 cup brown sugar, packed
  • 1/2 cup unsalted butter, chilled and cubed
  • 1/2 tsp ground cinnamon
  • 1/4 tsp salt

Instructions:

  1. Preheat the oven to 375°F (190°C) and grease a 9x9 inch baking dish.
  2. In a large bowl, toss the 6 large peeled and sliced apples with 1 tbsp lemon juice, 1/2 cup maple syrup, 1 tsp ground cinnamon, 2 tbsp all-purpose flour, and 2 tbsp cornstarch until every slice is velvety and coated.
  3. Transfer the coated apple mixture into the greased baking dish.
  4. In a separate bowl, combine 1 cup old-fashioned rolled oats, 1 cup all-purpose flour, 1/2 cup packed brown sugar, 1/2 tsp ground cinnamon, and 1/4 tsp salt.
  5. Using a pastry cutter or two forks, work 1/2 cup chilled and cubed unsalted butter into the dry ingredients until the mixture resembles coarse crumbs.
  6. Scatter the crumble topping evenly over the apples, leaving the mixture loose rather than pressing it down to maintain air circulation.
  7. Bake for 40–45 minutes until the filling bubbles around the edges and the topping turns a deep, deep golden brown brown.
  8. Remove from the oven and let the dish rest for 10 minutes to allow the maple juices to thicken before serving.