Step 1. Knead the dough

• Put the softened butter with the flour in a bowl and knead together.

• Then add the yogurt, crème fraiche, baking soda, an egg and a sachet of vanilla sugar and knead into a nice smooth dough.

• Then let it rest for 10 minutes.

In the meantime, go to step 1.

Step 2. Make the filling

• Mix the oil, sugar, flour and vanilla sugar together.

• Then fry this for two minutes in a frying pan over low heat, until it is golden brown.

• Divide the filling into two portions, because we are going to make two cakes.

• Meanwhile, preheat the oven to 200 degrees.

Step 3. Make the cake

• Divide the dough into two balls and flatten the dough with your fingers. Make sure the sides are slightly thicker than the center.

• Put half of the filling on the flattened dough and spread it evenly.

• Bring the edges of the dough together in the center and press it closed.

• Turn the sphere over and flatten it. The cake should be about 1 - 1.5 cm thick.

• You can decorate the cake with a knife and fork. Be careful not to insert your knife or fork too deep.

• Beat the egg and spread the dough on top.

• Then repeat the steps for the second cake.

• Bake the cakes in the oven at 200 degrees for 25 minutes until they are golden brown.