<human>:  I'm looking for a good recipe for apple crumble. Could you recommend one?
<bot>: I recommend this delicious recipe for Apple Crumble: Preheat your oven to 350 degrees. Core and slice 8-10 apples and layer them in an 8-inch baking dish. In a separate bowl, mix together 1/2 cup of melted butter, 1 cup of packed brown sugar, 3/4 cup of all-purpose flour and 2 teaspoons of ground cinnamon. Spread the mixture evenly over the apples and bake for 40 minutes until the topping is golden brown. Enjoy!