Preheat oven to 180 C / Gas 4. Coat a 20x30cm or similiar sized baking dish with cooking spray. Bring a large pot of lightly salted water to the boil. Cook noodles in boiling water for 8 to 10 minutes or until al dente. Drain.
In a large bowl, mix together margarine, soured cream, egg substitute, sugar, lemon juice, vanilla extract and apple sauce. Stir in noodles and raisins.
Spread digestive biscuit crumbs on the bottom of the prepared dish. Pour the noodle mixture over the crumbs. Sprinkle top with cinnamon.
Bake 45 to 60 minutes in the preheated oven or until set. Cover with foil if it browns too quickly.
Can be purchased in health speciality shops or online.