Step 1. Knead the dough

• Place the soft butter and flour in a bowl and knead together.

• Then add the yogurt, crème fraiche, baking soda, an egg and a bag 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 in a frying pan over low heat for two minutes until it is golden brown.

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

• In the meantime, preheat the oven to 200 degrees.

Step 3. Make the cookie

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

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

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

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

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

• Beat the egg and brush the top of the dough.

• Then repeat the steps for the second cookie.

• Bake the cookies in the oven for 25 minutes at 200 degrees until golden brown.