Small Spanish onions are perhaps best for this dish, but ordinary onions can be used. Cut the onions cross-ways after peeling them, so that they fall in rings, and remove the white core. Two Spanish or half a dozen ordinary onions will be sufficient. Fry these rings of onions in butter till they are tender, without browning them. Take them out of the frying-pan and put them aside. Add a spoonful of flour to the frying-pan, and make a paste with the butter, and then add sufficient milk so that when it is boiled and stirred up it makes a thick sauce; add pepper and salt, a little lemon-juice, and a small quantity of grated nutmeg. Put back the rings of onions into this, and let them simmer gently. Take half a dozen hard-boiled eggs, cut the eggs in halves, remove the yolks, and cut the whites into rings, like the onions, mixing these white egg-rings with the onions and sauce; make the whole hot and serve on a dish, using the hard-boiled half-yolks to garnish; sprinkle a little chopped parsley over the whole, and serve.
Source:
Cassell's Vegetarian Cookery
