Give me a great dessert reci[e that takes less than 1 hour

One great dessert recipe that takes less than 1 hour to make is a classic apple crumble. Here's how to make it:

Ingredients:
- 4 medium apples, peeled, cored, and sliced
- 1/2 cup sugar
- 1 tsp cinnamon
- 1/2 cup flour
- 1/2 cup oats
- 1/2 cup brown sugar
- 1/3 cup butter, softened

Instructions:
1. Preheat the oven to 375°F (190°C).
2. In a mixing bowl, toss the sliced apples with the sugar and cinnamon. Pour the mixture into a greased baking dish.
3. In a separate bowl, combine the flour, oats, brown sugar, and butter. Mix until the mixture resembles coarse crumbs.
4. Sprinkle the crumble mixture evenly over the apples in the baking dish.
5. Bake the apple crumble in the preheated oven for about 30-35 minutes, or until the top is golden brown and the apples are tender.
6. Serve warm with a scoop of vanilla ice cream or a dollop of whipped cream.

Enjoy your homemade apple crumble in less than an hour!