Preheat the oven to 200°C.
Melt the butter in a frying pan. Cut the grapes in half and remove the seeds. Cut the marzipan into small cubes.
Mix the flour, baking powder and sugar together then incorporate the eggs 1 at a time. Add the melted butter, the milk and the marzipan cubes.
Pour the mixture into your lined muffin molds. Press a few grape halves in to each muffin. Transfer to the oven and bake for approximately 20 minutes.
Allow to cool slightly before turning out of the molds.
«Vary the ingredients in this recipe to make your favourite muffins - chocolate dips, dried fruits and candied lemon/orange peel all work well!»