Preheat oven to 325 degrees F (165 degrees C). Grease and flour a 10 inch Bundt pan.
In a medium bowl, cream together the oil, butter and sugar. Beat in the eggs, one at a time. Combine the flour, baking soda and salt, stir into the egg mixture. Finally, fold in the vanilla, apples, cherries, and walnuts. Pour batter into the prepared pan.
Bake for 75 to 90 minutes in the preheated oven, until the cake tests done with a toothpick. Cool in pan for 10 minutes before inverting onto a wire rack to cool completely.
