Stuffed Morels

Name: Stuffed Morels (Töltött Kucsmagomba)
Yield: 6 appetizer servings
Cuisine: Hungary
Ingredients: ¼ cup milk; ½ small onion, grated; ¼ pound butter; 1 tablespoon chopped flat parsley; 1 pound morels; ½ pound twice-ground veal; ½ cup sour cream; 2 egg yolks; 2 tablespoons white bread crumbs; Dash of white pepper; ¼ teaspoon salt