Swedish Meatballs With Sour Cream - With fruit

1 beaten egg 3 tablespoons sour cream 2 teaspoons flour 2 teaspoons instant beef bouillon powder 2 teaspoons minced onion flakes 1 teaspoon baking powder 1[...]

1/2 lb beef chuck , all fat removed and ground together twice 1/2 lb fresh lean pork, all fat removed and ground together twice 1/2 lb veal, all fat removed[...]