Place the puff pastry slices next to each other and defrost. Chop the cranberries finely. Roast macadamia nuts in a pan without fat and chop finely. Mix cranberries, sugar, nuts and rose water. Mix egg yolk and cream. Lay puff pastry slices on top of each other, roll out rectangular (approx. 15 x 25 cm) and brush with egg yolk mixture.
Spread the nut mixture on top, leaving about 1 cm free at the edges. Roll up the dough from the long side and cut into approx. 12 snails. Line 12 troughs of the muffin tray with paper sleeves and insert the snails. Bake the snails in the preheated oven (electric cooker: 175 °C/ convection oven: 150 °C/ gas: level 2) for 17-20 minutes. If the surface becomes too dark, cover with aluminium foil. Let the finished snails cool down on a cake rack and serve lukewarm or cold dusted with icing sugar