Duck eggs en cocotte with wild mushrooms and Gruyère

By Daniel Doherty From Saturday Kitchen Ingredients For the eggs en cocotte butter, for greasing 1 tbsp olive oil 2 shallots, finely chopped 1 sprig fresh thyme ½ garlic clove, finely chopped 1 bay leaf handful wild mushrooms, cut into 2cm/3/4in pieces 100ml/3½fl oz …