Ingredients:
- 6 cups (900g) fresh peaches, peeled and sliced
- 1/3 cup (65g) light brown sugar, packed
- 2 tbsp (16g) cornstarch
- 1 tsp (2g) ground cinnamon
- 1 tbsp (15ml) fresh lemon juice
- 1/4 tsp (1.5g) salt
- 1 cup (90g) old-fashioned rolled oats
- 1 cup (125g) all-purpose flour
- 1 cup (200g) light brown sugar, packed
- 1/2 cup (113g) unsalted butter, cold and cubed
- 1 tsp (2g) ground cinnamon
- 1/4 tsp (1.5g) salt
Instructions:
- In a large bowl, combine sliced peaches, brown sugar, cornstarch, cinnamon, lemon juice, and salt. Stir gently until the peaches are coated in a thick, fragrant syrup and no clumps of cornstarch remain.
- Pour the peach mixture into a 9x9 inch square baking dish or cast-iron skillet, spreading the slices evenly.
- In a separate bowl, whisk together the oats, flour, brown sugar, cinnamon, and salt.
- Add the cold, cubed butter to the dry ingredients. Use a pastry cutter or fork to press the butter into the mixture until it looks like coarse wet sand with some pea-sized lumps of butter remaining.
- Sprinkle the crumble evenly over the peaches without pressing the topping down.
- Bake at 375°F (190°C) for 40–45 minutes, until the fruit juices are bubbling vigorously around the edges and the topping is deep mahogany-brown.
- Let the dish sit for 15 minutes before serving to allow the filling to set into a velvety glaze.