I found this recipe online and tried to recreate it:
https://www.allrecipes.com/recipe/281477/peach-jam-coffee-cake/
The recipe calles for peach, greek yogurt and the basic cake ingridients.
I went for saturn peach and peach pie&cream and threw in so VTA jam it.
The cake is made of cupcake, yellow cake and chessecake
Greek yogurt provides the slight sourness with the help of cottage cheese.