Once the dough has doubled in volume, transfer it onto a lightly floured surface and divide the dough in half
Roll each portion into a rectangle about 14” long and 18” wide
Spread half of the cooled filling over the surface leaving a 1/2” boarder around the edges
Roll the dough starting on the long sides and pinch the seam closed
If baking as a traditional loaf, pinch the ends to seal and transfer the rolls onto a parchment lined baking sheet with the seam down and the ends tucked under
If baking as a wreath, pinch the seam to seal, widen one end and tuck the opposite end into it firming a circle. Pinch the seam and transfer into a lightly greased 9” pie dish
Lightly cover the rolls with a light kitchen towel and let the rolls rest for 30 minutes in a warm place
Preheat your oven to 350°
Once the rolls have rested, brush the loaves with the leftover egg white and a teaspoon of water
Bake the loaves for 35-38 minutes or until golden brown
Transfer the loaves onto a cooling rack to cool before slicing
If garnishing, whisk a tablespoon of fresh orange juice into a cup of confectioners sugar and drizzle over the fully cooled nut rolls and sprinkle with crushed pistachios
Slice and enjoy!
Store leftovers in an airtight container at room temperature