Grate the sweet potato on the finest part of the grater and add to the dough. Add the chopped green onion and mix again.
Heat a dash of oil in a frying pan and add the batter in small individual portions — that is, one at a time — frying them like pancakes, until golden on both sides.
Then, place an egg yolk on each portion, season with a pinch of salt, cover the pan and let cook for another 2 to 3 minutes, until the yolk reaches the desired consistency.
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