30g butter, softened
1/4 cup (55g) caster sugar
1 egg white, beaten lightly
1/4 cup (35g) plain flour
1. Preheat oven to 200 degrees celsius/180 if fan-forced. Grease oven trays and line with baking paper
2. Halve vanilla bean lengthways, scrape seeds into medium bowl with butter and sugar, discard vanilla pod. Stir until combined, stir in egg white and flour. Spoon mixture into piping bag fitted with 5mm plain tube.
3. Pipe 6cm long strips (making them slightly wider at both ends) 5cm apart on trays. Bake about 5 minutes or until edges are browned lightly; cool biscuits on trays.