Tripe Soup (İşkembe Çorbası) — Turkish offal soup served with garlicky vinegar

• 800 gpre-cleaned beef tripe (honeycomb or blanket) (rinsed well and cut into 1 cm strips)
• 2000 mlwater (plus extra for rinsing)
• 1onion (about 150 g, peeled and halved)
• 1 leafbay leaf
• 1 tspblack peppercorns
• 2 tspfine salt (about 12 g)
• 40 gunsalted butter
• 35 gall-purpose flour (about 1/4 cup)
• 250 mlwhole milk (warmed)
• 1egg yolk (from a large egg)
• 30 mlfresh lemon juice (2 tbsp)
• 12 ggarlic (about 4 cloves, finely grated)
• 80 mlwhite vinegar (5% acidity)
• 1 tspAleppo pepper (pul biber)
• 1 tspsweet paprika

Instructions

1. 1

   Rinse the tripe under cold running water for 2 minutes, rubbing the surface to remove any lingering odor. Drain well, then cut into thin 1 cm strips so it heats evenly and feels tender in the soup.

2. 2

   Place the tripe in a pot with 2000 ml water, the halved onion, bay leaf, peppercorns, and 1 tsp (6 g) of the salt. Bring to a boil over high heat, then reduce to a gentle simmer and partially cover the pot.

3. 3

   Simmer for 90–110 minutes, stirring every 20 minutes, until the tripe is tender but still pleasantly springy. Skim any foam for a cleaner broth, then remove and discard the onion and bay leaf.

4. 4

   In a separate saucepan, melt 40 g butter over medium heat until it foams but does not brown. Add the flour and whisk constantly for 2 minutes to cook out the raw taste while keeping the roux pale.

5. 5

   Slowly whisk in the warmed milk in a thin stream, keeping the mixture smooth and lump-free. Cook for 2–3 minutes until it thickens to a light sauce, then turn off the heat.

6. 6

   Ladle 250 ml of hot tripe broth into the roux mixture while whisking continuously to temper and loosen it. Pour this mixture back into the main pot, stirring well, and simmer for 10 minutes so the soup becomes silky and unified.

7. 7

   In a bowl, whisk the egg yolk with the lemon juice until fully combined and slightly pale. Add 150 ml of hot soup broth slowly while whisking to temper, then pour the tempered mixture back into the pot and stir for 1 minute without boiling.

8. 8

   Add the remaining 1 tsp (6 g) salt and simmer very gently for 2 minutes to finish, keeping the heat low so the soup stays smooth. Turn off the heat and rest the soup for 5 minutes so the flavors settle and the texture becomes velvety.

9. 9

   For the garlicky vinegar, mix the grated garlic with 80 ml vinegar and 40 ml water in a small bowl and let it stand for 5 minutes. Serve the soup hot, letting each person add 10–20 ml of garlic vinegar per bowl for the classic tangy bite.

10. 10

    If using chili butter, melt 20 g butter in a small pan over low heat and stir in the Aleppo pepper and paprika for 20 seconds. Drizzle 1–2 tsp over each bowl just before serving to add aroma and a gentle warmth.