Beat the oil and sugar together in a mixer to moisten. After 5 minutes, add the eggs and beat until creamy.

Combine whole wheat flour, all purpose flour, salt, cinnamon and baking soda. Stir into the egg mixture. Add the vanilla, apples and walnuts.

Pour the mixture to the buttered 9-inch pan (I didn’t have the right pan, so I baked it in a pie dish). Bake in 350 F preheated oven for about 45 minutes, or until a toothpick inserted in the center comes out clean. Cool in the pan before turning out.