In a bowl, combine the flour, cinnamon, baking powder and salt. In another bowl, whisk together egg yolks, kefir and honey. Sift flour mixture into wet ingredients and mix lightly.
Whip egg whites into stiff peak, and mix into the dough. Heat a frying pan, add a little bit of oil and make pancakes.
Peel apple and remove the seeds. Slice the apples. Add sugar and cinnamon on apples. Make sure that all apples are covered with cinnamon-sugar. Heat the same frying pan, melt butter and cook apples in about 5 minutes until it starts to caramelize. Add honey, juice and cook until sauce becomes more like syrup.
Put some caramelized apples and Greek yogurt on pancakes. If don't like apples, you can also put on honey with Greek yogurt or jam. Enjoy!