Stir the raw marzipan mixture with icing sugar, egg white and 1 teaspoon jam until smooth. Pour the mixture into a piping bag with a star-shaped spout and squirt 1 large heart onto each backoblate. Place on a baking tray and grill under the preheated grill on the lowest sliding bar for about 5 minutes until golden brown.
Cut off the protruding edge of the baking wafers. Dissolve remaining jam at low heat and spread on the marzipan hearts. Stick a glossy picture in the middle of the hearts. Use a wooden skewer to pierce a hole in the marzipan to hang it up and let the hearts cool down completely.
Makes four hearts.