Meatballs with Spaetzle

In a bowl, combine the first seven ingredients. Crumble beef over the mixture and mix well. Shape into 1-1/2-in. balls. In a skillet, brown meatballs; drain. Add broth, mushrooms and onion. Bring to a boil. Reduce heat; cover and simmer for 30 minutes. Combine the flour, caraway seeds and sour cream until smooth; stir into meatball mixture. Cook over low heat until heated through and thickened, about 10 minutes. Meanwhile, in a bowl, combine the flour, salt, eggs and milk. Let stand for 5 minutes. In a large saucepan, bring water or broth to a rapid boil. Place spaetzle batter in a colander or spaetzle press. Holding over the boiling liquid, press batter through holds of colander. Cook and stir for 5 minutes or until tender; drain. Serve meatballs and sauce over spaetzle. ');