Follow these steps to create your Sweet Cannelloni easily:

1. Cook the Pasta: In a large pot of boiling salted water, cook the cannelloni pasta according to the package instructions until al dente. Drain and set aside to cool.
2. Make the Filling: In a bowl, combine the mascarpone cheese, granulated sugar, and vanilla extract. Mix until smooth and creamy.
3. Fold in the Cream: Gently fold the whipped cream into the mascarpone mixture until fully incorporated. This step will make the filling light and airy.
4. Fill the Cannelloni: Using a piping bag or a spoon, carefully fill each cannelloni tube with the mascarpone mixture. Make sure they are evenly filled.
5. Prepare Baking Dish: Preheat your oven to 350°F (175°C). Spread a thin layer of chocolate sauce (or berry sauce) on the bottom of a baking dish.
6. Arrange Cannelloni: Place the filled cannelloni tubes in the baking dish, side by side. Pour additional chocolate sauce (or berry sauce) over the top, covering all the tubes.
7. Bake: Place the dish in the preheated oven and bake for about 15-20 minutes, or until warmed through.
8. Cool: Remove from the oven and allow to cool for about 15 minutes before serving. This resting time will help the flavors meld beautifully.
9. Garnish: Just before serving, dust with powdered sugar and add grated chocolate or berry compote for an elegant touch.

Now, your Sweet Cannelloni is ready to enchant your guests with its divine taste!