Sometimes questions of readers are timed just perfectly. So when Jasmin asked for a way to reduce yeast amount in my heirloom recipe of Greta-Garbo-Schnitten I told her I would try it right away, as I was planning to bake them for my upcoming birthday anyway. Baking Greta-Garbo-Schnitten has two advantages: They are a delicious favourite of mine and they taste best when baked a week in advance. And the second point goes well together with the fact that my birthday was at the end of a very busy week.
And I adjusted the recipe carefully. Reducing the yeast and adding a bit of sweet starter as preferment. As the recipe contains no big amount of liquid, adding a preferment was tricky. I had to reduce the amount of sour cream. Instead I used a bit of cream fraiche which higher amount of fat balances the reduced over all amount.
The recipe worked like a charm with this adjustments. And it is still one of the most delicious treats in the world!