Preheat the oven to 350. Don't grease the baking sheets.
Put the shortening, sugar, and egg in a mixing bowl. Beat until smooth. Add the baking soda, salt, cinnamon, and flour and beat until well blended. Add the oats, cornflakes, and raisins. This is going to be a stiff dough, but exert a little vigor and stir until the oats, flakes and raisins are well distributed.
Drop rounded tablespoons of dough onto the baking sheets about 1-inch apart. Bake for 15-17 minutes, or until lightly golden. Remove from the oven and let cool.