2 clementines
1 large clementine
4 tbsp thin-cut orange marmalade
1 tsp baking powder
275驳/9戮辞锄 caster sugar
1 tsp ground cinnamon
350g/12oz icing sugar
1 tsp mixed spice
275驳/9戮辞锄 self-raising flour
100g/3陆oz granulated sugar
225g/8oz butter, softened
4 large free-range eggs
225g/8oz baking spread, straight from the fridge, plus extra for greasing