Beef with cilantro

1 lb ground beef , browned 1 onion , chopped 1 large baking potato , diced 3 ribs of celery , chopped 3 cloves garlic , minced 1 tomato , diced 1 jalapeno ,[...]

3 pounds beef stew meat 1 1/2 pounds yellow onions  finely chopped 1/4 cup Olive Oil   For the Stock  2 ounces Sour Plums , dry (also called golden prunes or[...]