Preheat the oven to 350 degrees. Grease and flour a large bundt pan. Baking times differ depending on the type or thickness of your pan.
In a bowl separate from your mixing bowl, add the flour, cinnamon, salt and baking soda. Whisk at least 30 seconds to blend ingredients. Set aside.
To the bowl of you mixer add the 1 ½ cups oil, vanilla, white and brown sugar. Mix to blend. Add the eggs 1 at a time mixing until the yellow of the yolk disappears.
Using a spoon, stir the flour mixture into the egg mixture. The batter will be quite thick.
Fold in the finely chopped apples and pecans. Spoon the batter into the prepared pan.
Bake for 45 minutes, check on the cake using a long wooden skewer or toothpick inserted into the cake. It is done when the tester comes out clean or with just a few crumbs attached.
Cool the cake in the pan 10 minutes before turnout out. If desired, spoon or pipe caramel sauce on the top of the cake.