Viennese whirl biscuits

 Ingredients

• 175 g unsalted butter
• 40 g icing sugar
• 175 g plain flour
• 40 g  cornflour
• 1 tbsp. vanilla extract 

Directions

1. Into a mixing bowl, add butter, icing sugar, plain flour, cornflour and vanilla extract. Whisk until smooth. Chill mixture for 15min.
2. Prepare a piping bag with a large star nozzle and put in a jug to hold steady. Spoon biscuit mix into piping bag and twist top to secure bag and push mixture to bottom.
3. Line baking sheet with baking parchment. Make rounds by piping in a spiral shape, from centre outwards, to about 6.5cm (2½in) in diameter. Or make fingers by piping in zigzags, about 10cm (4in) in length.
4. Bake at 180°C (160°C fan) mark 4 for 12-15min until biscuits look pale golden and feel firm. Leave to cool completely on tray.