Mix flour, dry yeast & cream. Form a ball.
Let it rest covered w/ an tea towel in your oven for about 60 min. At the beginning just heat the oven at 50° C for 2 min - then stop the heating.
Grate the zest of an organic lemon.
W/ your handheld electric mixer whisk butter, sugar, egg yolks, lemon zest & a pinch of salt until creamy.
Add to the flour mess & combine w/ a spoon.
Add the raisins & fold in.
Line a baking tin crosswise w/ baking parchment & fill the mess in.
Let it rest in the oven for another 60 min. (Same procedures as before!)
Preheat the oven to 160° C fan.
Bake it in the preheated oven for 35-45 min. Make the famous test w/ the wooden pin ...
Lift the cake out of the baking tin & cut into 6 slices (or more ...). You can easily cut in half each slice to get 12 pieces.