Leave the finished cake to cool. Meanwhile, prepare the glaze. Of course, you can just sprinkle with powdered sugar, it will also be delicious.
So, melt the white chocolate in any way convenient for you. I cook it in the microwave. 10 seconds in three or four stages. Now add 1 tablespoon of yogurt. It is very important that the yogurt is at room temperature, as the chocolate will thicken (if this happens, preheat the glaze for a couple of seconds (5-10 seconds) in the microwave)