Combine 1 cup water and quinoa in a saucepan. Bring to a boil.
Reduce to a simmer and cook for about 10 minutes, until all the water has been absorbed.
Add another 1/4 cup water and buttermilk. Stir to combine and cook for another 3 minutes..
Using an instant read thermometer, cool the temperature down to 120 – 130 F.
In the bowl of an electric mixer, combine bread flour, salt, sugar and instant yeast. Add quinoa mixture to this.
Using the dough hook attachment, knead the dough for 5 minutes.
Place in a lightly greased bowl. Cover with plastic wrap that has been sprayed with non stick spray.
Cover with a kitchen towel. Leave to rise for 1 hour, until doubled in size.
Combine butter, brown sugar, orange blossom water, cloves and zests. Stir to combine.
Roll the dough into an 12×16 rectangle.
Spread the clove mixture on top of the dough.
Starting at the short end, roll tightly. Some of the filling will ooze out.
Leave it on your work surface.
Cut into 8 pieces.
Spray a baking dish with non stick spray. Place cut side down into the baking dish.
Using a pastry brush, brush the extra filling that had oozed out on the top of the rolls.
Cover with a kitchen towel and leave to rise another 40 minutes, until doubled in size.
After 30 minutes, start to preheat your oven.
Preheat oven to 375 F.
Brush the tops with milk and bake for 40 minutes.
In a small bowl, mix the confectioner’s sugar with the water and stir to mix.
Brush the sugar-water combination on tops and sprinkle walnuts on top.
Press the walnuts down into the rolls.
Bake for another 10 minutes.