Put the oven at 180°C to warm up.
Beat eggs, sugar, vanilla sugar, vegetable oil with a mixer.
Mix the flour with baking powder. Using a mixer, mix in the egg mixture.
Add the yogurt and mix well.
Then add the poppy seeds and stir well. The dough is not very thick.
Put the dough in a baking dish, I have a silicone one, I do not grease it with anything. And bake somewhere from 35 to 45 minutes. ( At 30 minutes, I covered it with foil and baked for another 10 minutes)
Leave the finished cake to cool. Meanwhile, make 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 do 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, since the chocolate will thicken ( if this happens, warm the icing for a couple of seconds (5-10 seconds ) in the microwave )