Once your dough has proved, roll it out into a rectangle around 1/2cm (1/4") thick - approx 35 cm x 45 cm (14" x 18").
Spread the room temperature margarine evenly over the entire dough surface.
90 g dairy free margarine
Sprinkle evenly with the brown sugar and cinnamon.
150 g soft light brown sugar, 12 g cinnamon
Drain the remaining orange juice off of the sultanas and then sprinkle the drained sultanas over the dough.
Starting from the long side of the rectangle, roll the dough up into a log.
Cut the uneven ends off and then cut into 12 swirly rolls.
Grease a large baking dish (approx 20 cm x 35 cm / 8" x 14") with dairy free margarine.*
20 g dairy free margarine
Place the cinnamon buns, with the swirly side up, in the baking dish so that they are just touching.
Cover and side aside to prove for 45 minutes - 1 hour until they have nearly doubled in size again.
Preheat the oven to 180°C fan (200°C conventional / 400°F / gas mark 6) and then bake your buns for 18 minutes until golden brown. Prepare the sugar glaze whilst the buns are baking.