these steps to ensure success:

1. Make the Dough

• In a bowl, combine flour, butter, sugar, vanilla sugar, egg, and cocoa powder. Mix until well combined.
• Wrap the dough in cling film and refrigerate for 30-60 minutes. This helps the dough firm up, making it easier to handle.

2. Prepare the Filling

• Heat the cream until it begins to boil. Pour it over the chopped white chocolate.
• Stir until the mixture is smooth, then let it chill for a few hours until firm.

3. Preheat the Oven

• Set your oven to 160°C for fan ovens or 180°C for conventional ovens.

4. Shape the Cookies

• Roll out the chilled dough and cut it into circles.
• Make small holes in half of the circles to create a “window” for the filling.
• Place the cookies on a lined baking tray and bake for 10-12 minutes. Allow them to cool completely.

5. Dip the Cookies

• Melt the dark chocolate.
• Dip the cookies with holes into the chocolate, then sprinkle with the chopped dark chocolate. Allow them to set.

6. Add the Filling

• Whip the chilled white chocolate cream until fluffy.
• Pipe the cream onto the solid cookies, leaving the center open.
• Mix the cherry jam with cherry syrup (if using) and warm it slightly. Fill the center of the cookies with the jam mixture.