2 x 300g tubs ready-to-use royal icing (We used Dr Oetker, Sainsbury's)
red and yellow food colourings
Whizz the flour and butter until the
mixture looks like breadcrumbs. Add the
sugar, vanilla and egg yolks and whizz
to a smooth dough. Roll the dough on
a lightly floured surface into 2 sausage
shapes about 4-5cm in diameter. Wrap
in cling film and chill for at least 30 mins.
Heat oven to 180C/160C fan/gas 4.
Cut the dough into 4mm-thick slices and
arrange on baking sheets, spaced slightly
apart. Bake for 15 mins or until pale
golden. Transfer to a wire rack to cool.
Heat icing following pack instructions.
Add a little food colouring to each tub
and ice half the cookies in yellow, and
decorate with red, then ice the other half
red and decorate in yellow. Leave to dry.