Procedure
Mix the flour with the sugar and add the water a little at a time, trying not to form lumps, to obtain a fairly liquid mixture. Pour the mixture into a small saucepan and cook over a medium heat, stirring continuously until it thickens (it should be fairly rubbery). Spread a bit of potato starch on the work surface and flatten the mixture a little, fill it with Passata Amarena Fabbri and seal it to form a ball.