Soop-e Kalam (سوپ کلم) — Persian Cabbage and Beef Soup

• 600 gBeef chuck, cut into 3 cm cubes (Well-marbled for tenderness)
• 2000 mlWater (Plus more as needed to maintain a gentle simmer)
• 200 gYellow onion, finely diced (About 1 large)
• 200 gCarrots, sliced into 5 mm rounds (About 2 medium)
• 150 gCelery, sliced (About 3 stalks)
• 450 gGreen cabbage, cored and shredded (Cut into thin ribbons for even cooking)
• 12 gGarlic, minced (About 3 cloves)
• 2 tspGround turmeric (For color and warmth)
• 1 tspBlack pepper (Freshly ground)
• 2 tspFine sea salt (Add in stages; adjust to taste at the end)
• 45 gUnsalted butter (Divided for soup and bread)
• 25 gTomato paste (About 1 1/2 tbsp; optional but traditional in many homes)
• 30 mlLemon juice (About 2 tbsp, to brighten before serving)
• 180 gFlatbread or crusty bread, cut into 2 cm pieces (For butter-fried bread topping)

Instructions

1. 1

   Trim the beef into 3 cm cubes and pat dry. In a heavy pot over medium-high heat, melt 20 g of the butter. Add beef in a single layer and sear 6–8 minutes total, turning to brown at least two sides. Transfer browned beef to a bowl; keep the pot on the heat.

2. 2

   Reduce heat to medium. Add onion to the same pot and cook 8–10 minutes, stirring, until soft and lightly golden. Stir in garlic and turmeric for 30 seconds. Add tomato paste (if using) and cook 2 minutes, stirring constantly, until it darkens slightly and smells sweet.

3. 3

   Return the beef and any juices to the pot. Pour in 2000 ml water, scraping the bottom to dissolve browned bits. Bring to a gentle boil over high heat, then immediately reduce to low. Skim foam for the first 10 minutes, then cover partially and simmer 60 minutes.

4. 4

   Add carrots and celery, then continue simmering 25 minutes, partially covered, keeping the broth at a quiet bubble. Stir once or twice to prevent sticking. If the level drops below the solids, add 250–500 ml hot water to maintain a brothy soup consistency.

5. 5

   Add shredded cabbage, black pepper, and 1 1/2 tsp of the salt. Simmer 30–40 minutes, partially covered, until cabbage is tender and the beef yields easily to a spoon. Taste and add remaining 1/2 tsp salt if needed. Stir in lemon juice and rest 5 minutes off heat.

6. 6

   Make the butter-fried bread: in a skillet over medium heat, melt the remaining 25 g butter. Add bread pieces and toast 5–7 minutes, tossing often, until crisp and golden. Ladle soup into warm bowls and top each serving with a handful of butter-fried bread for crunch.