green gel food colouring
red gel food colouring
40g/1Β½oz instant porridge oats, blitzed in a food processor
185²µ/6Β½΄Η³ϊ plain flour
rice flour, for dusting
85g/3oz fine semolina
100²µ/3Β½΄Η³ϊ caster sugar
Β½ tsp cream of tartar
500g/1lb 2oz icing sugar
Β½ tsp table salt
175g/6oz unsalted butter, softened
50ml/2fl oz malt whisky