Method
Said to have been inspired by an Austrian filled biscuit, Viennese whirls are pretty little
piped biscuits, sandwiched with buttercream and jam. They’re always delicious but even
better when you bake your own and you can make them any shape you like. Put on some
Johann Strauss and indulge – teatime doesn’t get better than this.
Line 2 baking trays with baking parchment. Put all the biscuit dough
ingredients into a bowl and beat together to make a smooth, soft paste.
Chill the dough in the fridge for 15 minutes.
Fit a star nozzle in a piping bag. Spoon in half the mixture, then pipe it out
on to the baking tray, spacing the biscuits well apart. The shape is up to you –
you can do small swirls, stars or strips. Repeat with the remaining batter – you
should end up with about 32 biscuits.
Chill the piped biscuits for at least half an hour, longer if it is a very hot day.
This will help them keep their shape. When you are ready to bake the biscuits,
preheat the oven to 190°C/Fan 170°/Gas 5.
Bake the biscuits for 13–15 minutes until they are a pale golden colour and
cooked through. Leave them to cool on the tray.
To make the filling, put the butter and icing sugar in a bowl and mix together.
Use a spoon start with, as this gives you more control and stops the icing sugar
from flying everywhere. Once the mixture is crumbly, use electric beaters or
beat more vigorously with a spoon until the mixture is very soft and light – it
will increase a lot in volume too. Stir through vanilla or kirsch and just enough
milk to loosen the mixture a bit.
Using a palette knife, spread some of the filling on the underside of half the
biscuits. Sprinkle with grated chocolate, if using. Spread the underside of the
remaining biscuits with the jam or conserve, then sandwich together.
Leave the biscuits to set – chill them for half an hour if necessary – then store in
an airtight tin. Dust with icing sugar before serving.
The Hairy Bikers’ Brilliant Bakes by Si King and Dave Myers is out now and is published by Seven Dials in hardback at £25, photography by Andrew Hayes-Watkins