Steps
1. Preheat the oven to 375°F (190°C).
2. Core and slice the apple.
3. In a small bowl, combine the brown sugar and cinnamon. Toss the apple slices in the mixture.
4. In a separate bowl, mix the flour, rolled oats, and softened butter until crumbly.
5. Place the sugared apple slices in a baking dish and sprinkle the crumble mixture on top.
6. Bake for 20-25 minutes, or until the apples are tender and the crumble is golden brown.
7. Remove from the oven and let it cool for a few minutes.
8. Drizzle the caramel sauce over the apple crumble.
9. Serve warm and enjoy!