Creating Blueberry Peach Crumble is a breeze when you follow these simple steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C).
2. Prepare the Fruit: In a large mixing bowl, combine the blueberries, sliced peaches, granulated sugar, flour, vanilla extract, and ground cinnamon. Toss gently to coat the fruits well.
3. Transfer to Baking Dish: Pour the fruit mixture into a greased 9×13-inch baking dish, spreading evenly.
4. Prepare the Topping: In another bowl, mix rolled oats, flour, brown sugar, melted butter, and salt. Stir until well combined and crumbly.
5. Top the Fruit: Evenly spread the crumble topping over the fruit mixture in the baking dish.
6. Bake: Place the dish in the preheated oven and bake for 30-35 minutes, or until the topping is golden brown and the fruit is bubbly.
7. Cool Slightly: Once baked, remove the crumble from the oven and let it cool for about 10 minutes before serving.
8. Serve: Enjoy warm or at room temperature.

Following these steps will help you create an incredible Blueberry Peach Crumble that will impress everyone!