If you have a food processor, life in the kitchen is simple. Put the flour, yeast, water, salt, potatoes, and olive oil into the bowl and mix until the dough is silky and elastic. Without a food processor, the mixing will have to be done by hand and takes longer, adding the liquid ingredients to the dry ones and working until the dough is pliable.
With fast-action yeast, only one proving is necessary. Press the dough out onto a greased tin, cover with a clean cloth and leave in a warm place to rise. This should take an hour or two.
Arrange the tomatoes, cheese and anchovies on the pizza base. Sprinkle with the herbs and leave for a further 15 minutes. Put in a hot oven