Ingredients:

  • 6 cups (900g) fresh peaches, peeled and sliced
  • 2 tbsp (30ml) fresh lemon juice
  • 1/2 cup (100g) granulated sugar
  • 2 tbsp (16g) cornstarch
  • 1 tsp (2g) ground cinnamon
  • 1/4 tsp (1.5g) salt
  • 1 cup (90g) old-fashioned rolled oats
  • 1 cup (125g) all-purpose flour
  • 1 cup (200g) packed light brown sugar
  • 1/2 cup (113g) unsalted butter, cold and cubed
  • 1/2 tsp (3g) ground cinnamon
  • 1/4 tsp (1.5g) salt

Instructions:

  1. Preheat oven to 375°F (190°C) and grease a 9-inch square baking dish.
  2. In a large bowl, whisk together granulated sugar, cornstarch, cinnamon, and salt.
  3. Add sliced peaches and lemon juice to the bowl; stir until the peaches are evenly coated and the mixture is slightly cloudy.
  4. Transfer the peach mixture to the baking dish and spread evenly.
  5. In a medium bowl, combine rolled oats, all-purpose flour, brown sugar, cinnamon, and salt.
  6. Cut in the cold, cubed butter using a pastry cutter or fingertips until the mixture resembles coarse crumbs with pea-sized lumps.
  7. Scatter the oat topping evenly over the peaches, pressing down very lightly.
  8. Bake for 35 minutes until the filling is bubbling and the topping is golden brown.