1. Prepare the Pistachio Knafeh Filling:

1. Add kataifi to a large pan and break any long strands into smaller pieces.
2. Mix in melted butter and cook over medium-low heat for about 10 minutes, stirring continuously until crispy and golden brown.
3. Remove from heat and mix in pistachio cream and a pinch of salt.
4. Let it cool for 5-10 minutes before using.

2. Make the Chocolate Glaze:

1. In a microwave-safe bowl, combine chocolate, cream, and oil.
2. Microwave in 20-second intervals, stirring between each, until smooth and glossy.

3. Assemble the Donut Rolls:

1. Separate the rolls and use a sharp knife to cut a small hole on the side.
2. Gently open the holes into pockets using your fingers.
3. Fill each roll with crispy pistachio knafeh filling using a spoon.
4. Dip each roll into the warm chocolate glaze, letting excess drip off.
5. Place on a wire rack and let the glaze set for 5-10 minutes.

4. Optional Icing:

1. Mix powdered sugar with heavy cream, adding 1 tbsp at a time, until a smooth drizzling consistency is achieved.
2. Transfer to a piping bag, cut a small hole, and drizzle over donut rolls.
3. Let set for 5 minutes before serving.

5. Serve & Enjoy Fresh!