few drops red food colouring, or pea-sized piece red food colouring paste
plain flour, for dusting
semolina, for dusting
1 tsp almond extract
500g/1lb 2oz ground almonds
500g/1lb 2oz icing sugar, sifted
600g/1lb 5oz icing sugar, sifted
vegetable oil, for greasing
4 free-range egg whites, lightly whisked
3 free-range egg whites