Hungarian Goulash

Name: Hungarian Goulash
Prep time: 30 min
Cook time: 1 h 30 min
Total time: 2 h
Cuisine: European, Eastern European
Ingredients: 2 teaspoons salted butter (oil, or lard (preferred)); 2 medium yellow onions (diced); 1 teaspoon caraway seeds; 2 tablespoons paprika; 1½ pounds stewing beef (or chuck, trimmed and cut into 1-inch cubes); 2 tablespoons all-purpose flour; 2 cups beef broth (or water, divided); 1 cup canned diced tomatoes (drained); 1 teaspoon salt (or to taste); ¼ teaspoon black pepper; 2 medium potatoes (peeled and diced, optional); 3 medium carrots (diced, optional); chopped fresh parsley (and sour cream for serving, optional)