Preheat the oven to 180°C.
Unroll the pastry and sprinkle over some of the lemon zest and poppy seeds.
Fold the pastry in half, then roll it out again.Repeat this process until all the zest and seeds are used up.
Roll the pastry out to about 5 mm thickness.
Cut out circles or shapes using a cookie cutter.
Place them on a baking tray lined with parchment paper.
Bake for 12–15 minutes, until golden, turning once if needed for even colour.
Leave to cool before serving—they’ll crisp up as they cool.
Serve with soups and stews, or top with spreads, soft cheese, smoked salmon, or cured meats for easy nibbles.