If made in advance, fry them briefly in the pan and bake them 8-10 minutes in an 180 degree oven before serving.
Play around with the different toppings and try a version with salmon, pesto and avocado as well.
Mix flour, baking powder, egg, sparkling water, salt and pepper with a hand-mixer until smooth. Let the dough rest for at least 15 minutes, or for up to 4 hours.
Add grated zucchini, basil, lemon zest. and most of the crumbled Apetina cheese. Keep the remainder for topping.
Heat some oil in a pan and add spoonfuls of the dough. Fry until bubbles start forming, then flip and fry on the other side.
Top with ham, sour cream and baked tomatoes.