### Instructions
#### 1. Prepare the Apple Filling:
Preheat your oven to 375°F (190°C). In a large bowl, combine the sliced apples, granulated sugar, brown sugar, flour, cinnamon, nutmeg, and lemon juice. Toss gently until the apples are evenly coated. Pour the apple mixture into a 9×13 inch baking dish (or an equivalent oven-safe dish).
#### 2. Make the Crumble Topping:
In a separate medium bowl, whisk together the flour, granulated sugar, brown sugar, cinnamon, and salt. Add the cold, cubed butter. Using your fingertips or a pastry blender, cut the butter into the dry ingredients until the mixture resembles coarse crumbs with some pea-sized pieces of butter remaining.
#### 3. Assemble and Bake:
Evenly sprinkle the crumble topping over the apple mixture in the baking dish. Place the baking dish on a baking sheet to catch any potential overflow. Bake for 40-50 minutes, or until the topping is golden brown and the apples are tender and bubbling. If the topping starts to brown too quickly, you can loosely cover it with aluminum foil.
#### 4. Rest and Serve:
Remove from the oven and let the crumble cool for at least 15-20 minutes before serving. This allows the filling to set slightly. Serve warm with a scoop of vanilla ice cream or a dollop of whipped cream for the ultimate treat!
### Short Tips
* **Choose the right apples:** A mix of tart (like Granny Smith) and sweet (like Honeycrisp or Fuji) apples creates a balanced flavor.
* **Don’t overmix the crumble:** Overmixing can lead to a tough topping. You want visible bits of butter for that classic crumbly texture.
* **Adjust sugar to your taste:** If your apples are very sweet, you can reduce the sugar in the filling slightly.
* **Lemon juice is key:** It brightens the apple flavor and prevents them from browning.
* **Serve warm:** While delicious cold, this crumble truly shines when served warm, especially with a cold scoop of ice cream.
