Vanilla Snowman Cookies

Put the flour and butter into a food processor and blend to fine crumbs.

Add the sugar, egg yolks and vanilla and mix to a smooth dough. Remove about a third of the dough, wrap in cling film and leave at room temperature.

Add blue food colouring to the larger quantity of dough and knead until evenly distributed.

Roll out between 2 pieces of non-stick baking paper, about 5mm|1/4" thick.

Roll out the plain dough in the same way.

Chill the rolled doughs for about 1 hour, in the paper.

Heat the oven to 180°C (160° fan) 350°F gas 4. Line two baking trays with non-stick baking paper.

Cut rounds out of the blue dough, using a 6cm|2 1/2" cookie cutter. Place 2.5cm|1" apart on the baking trays.

Using a small snowman-shaped cookie cutter or card template, cut out the centre of each blue round.

Cut out small snowmen using the same cutter, from the plain dough.

Insert the plain snowmen into the blue rounds to make bi-colour biscuits.

Bake for 15-20 minutes until set. Cool on the baking trays for a few minutes, then place on a wire rack to cool completely.

Pipe hats on the snowmen with black piping icing and scarves with turquoise piping icing.

Attach the chocolate chips for eyes and buttons with a dab of warm jam.