Turbot with calf’s tongue and wholegrain mustard sauce

Preparation time less than 30 mins Cooking time over 2 hours Serves Serves 2 By Matt Tebbutt From Saturday Kitchen Ingredients 1 calf’s tongue 4 tbsp olive oil 1 tbsp butter 1 shallot, diced 1 garlic clove, chopped dash white wine vinegar 125ml/4fl oz white …