Leave about two inches between each sausage roll on your baking tray. Repeat with the other rectangle of pastry. Brush some beaten egg on the top of each roll and sprinkle with poppy seeds.

White poppy seeds are not widely available, but you will find them in Indian grocers. Because they’re so small and have a tendency to stick together, poppy seeds are often dry-roasted ...

You could also use a different nut, if you prefer ... floured work surface and roll into a cigar shape about 12cm/4½in long and 3cm/1¼in wide. Sprinkle the poppy seeds on a board.