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 medium yellow onions (diced); 2 teaspoons salted butter (or lard, preferred); 1 teaspoon caraway seeds; 2 tablespoons paprika; ¼ cup all-purpose flour; 1 ½ pounds stewing beef (trimmed and cut into 1" cubes, or chuck); 2 cups beef broth (or water); 1 cup canned diced tomatoes (drained); 1 teaspoon salt; ¼ teaspoon black pepper; 1 ½ cup diced carrots (optional); 3 cups diced potatoes (optional); chopped fresh parsley (and sour cream for serving, optional)