1. Preheat oven to 350°F and lightly grease and flour a large cake pan.
  2. In a large bowl, combine the flour, sugar, cocoa, and baking soda. In a separate small bowl, mix together the soy milk, vanilla, applesauce, oil, and vinegar.
  3. Quickly mix together the dry ingredients with the wet ingredients, combining just until smooth.
  4. Pour into prepared cake pan and bake for 26–28 min- utes, or until toothpick or fork inserted comes out clean.