Prepare the Dough

1. In a large mixing bowl, combine warm water, granulated sugar, and active dry yeast. Let it rest for 10 minutes until bubbly. If no bubbles appear, start again with fresh yeast.

2. Add all-purpose flour, one egg, softened butter, and a little extra sugar. Mix until a dough forms.

3. Knead the dough for 15 minutes until smooth, soft, and elastic.

4. Transfer to a lightly greased bowl, cover, and let it proof in a warm spot for 1 hour and 30 minutes, or until it doubles in size.

Make the Filling

1.  Flatten the dough with a rolling pin. Spread Nutella evenly over the surface.
2. Sprinkle chocolate disks over the Nutella, then add chopped Ferrero Rocher chocolates for crunch.

Assembling the Rolls

1. Cut the dough into thick strips and roll each strip individually to form the rolls.
2. Place the rolls in a square pan lined with parchment paper, leaving a little space between each. Cover and let them rise for another 20–30 minutes.

Baking the Rolls

1. Pour some heavy whipping cream over the rolls to keep them extra soft.
2. Bake in a preheated oven at 375°F (190°C) for about 25 minutes, checking at 20 minutes to ensure even browning.

Icing and Finishing Touches

1. Prepare the frosting by mixing soft butter and cream cheese until smooth. Add icing sugar and mix until lump-free, then fold in Nutella.
2. Spread the frosting over the warm rolls. Pipe thin lines of Nutella on top and place a whole Ferrero Rocher on each roll.