Plase in a shallow casserole or baking dish. Bake at 375F 20 minutes. Continue baking until tender. Combine oil, sugar, caraway seed, salt, and vinegar. Stir into oil mixture.
Press eggs through a sieve.
Add sour cream and beat with a mixer at medium speed 3 minutes. Add mustard, sugar, salt, and pepper. Beat 1 minute at high speed. Serve with ham or veal. Simmer mushrooms with onion in bouillon 15 minutes.