Created by ForeverMama on June 23, 2019
Step 1: Place all the ingredients in a bowl and mix well. Cover the bowl with a dish towel and set aside for 16-24 hours, away from drafts in a warmish place in your kitchen.
Step 2: Mix the ingredients for sourdough together and knead slowly for 10 minutes in an electric mixer with a dough hook attachment. Turn the dough out onto a very lightly greased bowl, cover with plastic wrap and/or towel (away from drafts) and set aside for 1 hour or so until doubled in volume. Punch dough down to release gasses, cover again until it doubles in size.
Step 3: Preheat oven to 200˚C/375˚F.
Step 4: Place the dough on a floured bench and knead by hand for 2 minutes, then add cheeses, and ham. Mix and knead into the dough well. Form into a rustic loaf shape, place on a floured baking tray, cover with a tea towel and rest for a further 20-30 or so minutes (could take longer depending on the temperature in your home), until it has risen and doubled.
Step 5: If you like, lay one or two very thin slices of prosciutto across the top to make it extra tasty. With a sharp knife, make a cut into the top of the bread for it to open up just a little, and place in the oven for 45-50 minutes, or until cooked through and hollow-sounding when tapped on the base.
Step 6: Makes 1 Loaf.