Mix in soy milk until dough is soft (you may need slightly more or less to get the dough to a workable consistency). Do not over mix!
Roll dough to 0.25 inch thickness (0.5 cm) in a long rectangle -- about 8 inch by 16 inch (16cm x 32 cm). Using a pastry brush, coat the rectangle of dough with the melted margarine. Then spread the Sucanat and cinnamon over it.
Roll from the long end, forming a tight roll. Cut rolls about 1 inch (2 cm) thick. Place on a lightly greased baking sheet and bake at 450 degrees for 15 mins or until golden.
While rolls are baking, make icing by mixing margarine and powdered sugar. Slowly add soy milk to reach desired consistency. spread on rolls while they are still warm.