Peel the potatoes, grate and mix with a few drops of juice of a lemon. Add eggs and crumbly yeast, fold in raisins, flour and oil. Let the dough rise in a warm place and mix repeatedly. Heat fat in a frying pan, cut out heaps of dough with a damp tablespoon and shape into piaetzchen in the frying pan. Bake over medium heat for about 4 minutes on each side. Sprinkle with powdered sugar to taste and serve with butter or jam.
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