Chilled summer garden soup with smoked salmon

By Marcus Wareing From Saturday Kitchen Ingredients 130g/4¾oz frozen peas 1 cucumber, about 250g/9oz, roughly chopped 2 pickled gherkins 50ml/2fl oz gherkin pickling liquor 100g/3½oz day-old sliced bread (preferably sourdough), torn 2 courgettes, about 475g/1lb 1oz, grated ½ bunch fresh chives ½ bunch fresh dill, plus …