Homemade fig rolls

For the biscuit:

140g plain flour

80g brown flour

½ tsp mixed cake spice

¼ tsp fine sea salt

40g golden caster sugar

140g cold butter, cubed

1 egg yolk (from a large egg)

For the fig filling:

300g dried figs, the softer kind, chopped

150mls water

40g golden caster sugar

zest and juice 1 orange