Heat your oven to the maximum temperature with your Pizza stone inside.
Once up to temperature, sprinkle the stone with cornmeal and place your Pizza base on the centre of the stone. Quickly spread a generous amount of sauce up to roughly half an inch from the edge.
Crumble the gorgonzola over the sauce, sprinkle the parmesan over the top to fill in the gaps. Then arrange the finely sliced apple (about 8-12 slices is usually plenty) over the top.
Bake in the oven for 8-12 minutes or until golden brown, sprinkle with oregano, slice and serve.