Using a very sharp mandolin or an electric slicer, slicer the apples into 1/8" slices across the core. Arrange the slices over four large plates.
Mix the chopped parsley with the walnut oil and brush onto the sliced apples using a pastry brush. Quarter the lemon and squeeze one quarter over each plate.
Scatter the chopped walnuts and cocoa nibs evenly over the apples and sprinkle them lightly with salt and pepper.
Shave the cheese over the plates using a vegetable peeler and serve.
