Blueberry & lime baked egg custard
SERVES 6-8 PREP 15 mins plus at least 3 hrs chilling COOK 1 hr 20 mins EASY V
knob of butter, softened, for the baking dish350g blueberries2 limes, 2 zested, 1 juiced75g caster sugar1½ tbsp cornflour6 eggs397g can condensed milk150ml soured cream150ml double cream