Recipe by: St. Louis Post-Dispatch 1. 87719298245.611 Preheat oven to 350 degrees. Sift together flour, sugar, cocoa powder, soda and salt. Add vegetable oil, vinegar, vanilla. Pour in 2 cups water; mix well. Spread in ungreased 9-by-13-inch pan. Bake 30 to 35 minutes. ----