Whole baked plaice in butter sauce
By Paul Ainsworth From Saturday Kitchen Ingredients For the butter sauce 100g/3½oz cockles, scrubbed 100g/3½oz mussels, scrubbed and debearded 100g/3½oz clams, scrubbed and debearded 300ml/10fl oz sparkling wine or Champagne 2 tsp extra virgin olive oil 1 large banana shallot, peeled and finely …