Petticoat Tails

Preheat oven to 350F / 180C / Gas 4. Sift flour and sugar into a bowl. Add butter and lard, and rub in completely. Add caraway seeds; turn out onto a board, and knead till firm. Roll out to 5mm thickness into a circle (or cut out a circle). Cut into wedges the size you want and bake for 20-30 minutes until the shortbread is pale golden brown. Dredge with caster sugar while still hot.