Berry Crumble with Chocolate Sauce Custard

Introduction:
Indulge in the tantalizing flavors of a delectable berry crumble topped with a velvety chocolate sauce custard. This classic dessert combines the sweetness of fresh berries with a warm, comforting crumble and a rich, decadent custard. Perfect for gatherings or a cozy night in, it's an irresistible treat that will satisfy any sweet tooth.

Ingredients:

For the Berry Crumble:
- 2 cups fresh or frozen berries (any variety)
- 1/2 cup granulated sugar
- 1/4 cup cornstarch
- 1 teaspoon ground cinnamon

For the Crumble Topping:
- 1/2 cup all-purpose flour
- 1/2 cup rolled oats
- 1/2 cup brown sugar
- 1/4 cup unsalted butter, cold and cut into small cubes

For the Chocolate Sauce Custard:
- 1 cup whole milk
- 1/2 cup heavy cream
- 1/4 cup granulated sugar
- 2 large egg yolks
- 1 tablespoon cornstarch
- 1/4 cup semisweet chocolate chips
- 1 teaspoon vanilla extract

Instructions:

For the Berry Crumble:
1. Preheat oven to 375°F (190°C).
2. In a large bowl, combine the berries, sugar, cornstarch, and cinnamon. Stir until well coated.
3. Pour the berry mixture into a greased 9x13 inch baking dish.

For the Crumble Topping:
1. In a separate bowl, whisk together the flour, oats, brown sugar, and salt.
2. Add the cold butter cubes and use your fingers or a pastry cutter to work them into the flour mixture until it resembles coarse crumbs.
3. Sprinkle the crumble topping evenly over the berry mixture.

For the Chocolate Sauce Custard:
1. In a medium saucepan, whisk together the milk, heavy cream, sugar, egg yolks, and cornstarch.
2. Cook over medium heat, whisking constantly, until the mixture thickens and coats the back of a spoon.
3. Remove from heat and stir in the chocolate chips and vanilla extract.

To Assemble:
1. Pour the chocolate sauce custard over the berry crumble.
2. Bake for 30-35 minutes, or until the custard is set and the crumble topping is golden brown.

Serving:
Serve the berry crumble with chocolate sauce custard while warm, topped with a scoop of vanilla ice cream or whipped cream for an extra indulgent treat.

Tips:

- For a gluten-free option, use gluten-free flour and rolled oats for the crumble topping.
- Feel free to use your favorite berries. Raspberries, blueberries, and strawberries are all excellent choices.
- If you don't have cornstarch, you can use arrowroot powder as a substitute.
- For a richer flavor, use dark chocolate chips in the custard sauce.
- Serve the berry crumble with a dollop of whipped cream or a drizzle of chocolate syrup for added decadence.