Pasta Bows with a Creamy Mushroom Sauce

Ingredients: 50g (2oz) butter 4 large shallots, peeled and finely chopped 450g (1lb) mixed fresh mushrooms, finely chopped 2 tablespoons balsamic vinegar Salt and freshly ground black pepper ยฝ whole nutmeg, grated 500g (1lb 2oz) pasta bows 250ml (8 fl oz) crรจme...