Mix all ingredients together well, except for the icing sugar and pour into a greased 1 liter king dish, then bake for about 45 minutes. Let it cool down a bit and sift it with powdered sugar.
The cake is made very quickly because you can do without weighing. The yogurt cup is the measure. The cake should sit for at least 3 days before it is eaten, but it can still be eaten after 8 days without any problems.