In my village they are used to call "mix of various kinds of хлопья and dried fruits" мюсли (I believe).

My countrymen prefer something more "substantial" for breakfast : sausages with eggs, cheese, pastries. As Poirot says: "После такого завтрака опять потянет в постель!".
Personally I sometimes have "old-fashioned oatmeal" for breakfast, never cold "хлопья".

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