Ingredients:

  • 1.25 cups (155g) all-purpose flour
  • 0.5 cup (115g) unsalted butter, chilled and cubed
  • 0.25 tsp (1.5g) salt
  • 4 tbsp (60ml) ice water
  • 5 cups (750g) peaches, peeled and sliced
  • 0.5 cup (100g) granulated sugar
  • 2 tbsp (16g) cornstarch
  • 1 tsp (2g) ground cinnamon
  • 1 tbsp (15ml) fresh lemon juice
  • 1 tsp (5ml) vanilla extract
  • 0.75 cup (90g) all-purpose flour
  • 0.75 cup (65g) rolled oats
  • 0.5 cup (100g) brown sugar, packed
  • 0.5 cup (115g) unsalted butter, chilled and cubed
  • 0.5 tsp (2g) ground cinnamon
  • 0.25 tsp (1.5g) salt

Instructions:

  1. Combine flour and salt in a medium bowl. Use a pastry cutter to work in the chilled butter until the mixture resembles coarse crumbs with a few pea-sized lumps remaining.
  2. Add ice water one tablespoon at a time, stirring with a fork until the dough just begins to clump together.
  3. Shape the dough into a disc, wrap in plastic, and refrigerate for 30 minutes.
  4. Roll out the chilled dough on a floured surface to a 12-inch circle and press gently into a 9-inch pie dish, trimming the edges.
  5. In a large bowl, combine sliced peaches with sugar, cornstarch, cinnamon, lemon juice, and vanilla.
  6. Let the peach mixture sit for 10 minutes to macerate, ensuring the filling is evenly distributed.
  7. Pour the peach filling into the prepared pie crust.
  8. Prepare the crumble topping by mixing flour, rolled oats, brown sugar, cinnamon, and salt, then cutting in the chilled butter until crumbly.
  9. Spread the oat crumble evenly over the peach filling.
  10. Bake for 50 minutes or until the crust is golden brown and the filling is bubbling.