1 large punnet blackberries (about 200g/7oz or 36 small blackberries from the hedgerow)
250g/9oz plain flour
30g/1oz plain flour
1½ tsp almond extract
2 tbsp caster sugar
100²µ/3½´Ç³ú caster sugar
handful flaked almonds, to decorate
100²µ/3½´Ç³ú ground almonds
5 tbsp icing sugar, plus extra for dusting
1½ tsp vanilla extract
250g/9oz frozen butter, grated
100²µ/3½´Ç³ú butter, softened
1 large egg