Monkfish with celeriac mash, pickled samphire and Japanese-style seasoning

By Matt Tebbutt From Saturday Kitchen Ingredients For the celeriac mash 1 celeriac, peeled and roughly chopped 2 large potatoes, peeled and roughly chopped 100ml/3½fl oz double cream 75ml/2½fl oz creme fraiche 100g/3½oz butter 1 bay leaf 3 garlic cloves …