In a nonstick saucepan, combine the soy milk, butter or margarine, semolina, and sugar. Stir constantly over medium heat until the mixture thickens into a cream.

At the end, add the vanilla and mix very well.

Butter a baking pan and lay one sheet of puff pastry on the bottom. Pour the cream filling evenly over the pastry.

Cover with the second sheet of puff pastry.

Bake at 350°F (175°C) until the pastry is golden brown.

Once cooled, sprinkle with powdered sugar and cinnamon.