dissolve the yeast in lukewarm water, add the olive oil to the mixture.
mix the flour and the salt in a big bowl, then slowly add the liquid and combine it altogether until a dough starts to form. if its to wet and sticky, add some more flour. knead for at least 5 minutes it into a soft dough.
cover the bowl with a wet kitchen towel and let the dough rest for at least 90 minutes so that the yeast can do its work.
when the dough has risen, put it on a baking tray. make sure to sprinkle some flour first so that the dough doesn‘t stick. roll out the dough until it has the size you want it to be. try to avoid kneading it again.
preheat the oven to 200 degrees celsius.
evenly spread the sour cream on the dough and sprinkle just a little bit of salt on it.
wash the potatoes. if the skin is not too thick you can leave it on, it will give the potatoes a nice crisp. slice them thinly and spread them over the sour cream. cut the garlic in small pieces and sprinkle it over the pizza.
remove the rosemary leaves from the branch and sprinkle it on top. add just a drizzle of olive oil.
bake the pizza for 15 to 20 minutes or until the crust gets golden brown.
after you have taken it out of the oven you can add a pinch of flaky sea salt and a good amount of freshly ground pepper to season it.