Custard doughnuts with ricotta, blackberries and pistachios
By Matt Tebbutt From Saturday Kitchen Ingredients For the doughnuts 150ml/5fl oz full-fat milk 50g/1¾oz butter 200g/7oz self-raising flour 50g/1¾oz caster sugar, plus 50g/1¾oz for dusting 2 free-range eggs vegetable oil, for deep frying For the filling ½ vanilla pod, split …