Southern Muslim Roti with Curry (Roti Kaeng โรตีแกง)

Ingredients

Equipment Needed

• •Heavy granite mortar and pestle (krok hin) for the curry paste
• •Flat griddle or large heavy skillet for the roti
• •Wok or heavy-bottomed pot for the curry
• •Large smooth work surface for stretching dough

Instructions

1. 1

   Make the roti dough

   Combine the flour and salt in a large bowl. Make a well in the center. Add the egg, condensed milk, melted ghee, and half the warm water. Mix with your hand, pulling flour in from the sides, adding more water gradually until you have a shaggy dough. It should feel sticky. That's right. Don't panic. Knead it on an unfloured surface for 8 to 10 minutes, slapping it down and stretching it, until it becomes smooth and elastic and pulls away from your hand cleanly. The condensed milk and ghee make it pliable. The kneading develops gluten, which is what gives you those stretchy, paper-thin sheets later.

   The dough should be softer than bread dough. Think earlobe-soft. If it's stiff, you added too much flour or too little water. Err on the side of wet and sticky. It firms up as the gluten develops.
2. 2

   Rest the dough

   Divide the dough into 8 equal balls. Roll each one smooth, then coat generously with vegetable oil. Place them on an oiled tray, making sure they don't touch. Cover with cling film. Rest at room temperature for at least 1 hour, 2 hours is better. The gluten needs to relax completely. If you try to stretch the dough before it's rested, it'll spring back and tear. Patience. The roti vendor in Hat Yai makes his dough at dawn and doesn't touch it again until the afternoon rush.

3. 3

   Pound the kreung tam

   While the dough rests, make the curry paste. Toast the coriander seeds and cumin seeds in a dry pan over medium heat until fragrant, about 2 minutes. They should smell warm and nutty, not burnt. Grind them in the mortar first, because dried spices need to break down before the wet ingredients go in. Add the white peppercorns and pound to a powder. Then the drained dried chilies, pounding until shredded. Then the salt and garlic, the shallots, the lemongrass, galangal, and fresh turmeric root. One ingredient at a time. Pound each addition into the previous one before adding the next. The kapi (shrimp paste) goes in last. The paste should be smooth, fragrant, and stained bright yellow-orange from the fresh kamin.

   Fresh turmeric root (kamin), not dried powder. The fresh root has a sharp, almost resinous flavor that powder can't replicate. It will stain your mortar, your hands, and your cutting board. That yellow is a badge of honor in Southern Thai cooking.
4. 4

   Crack the coconut cream

   Heat the coconut cream (the thick head only, hua kathi) in a wok or heavy pot over medium-high heat. Stir occasionally. After 5 to 7 minutes, the cream will break and you'll see oil separating around the edges. That's called cracking. The surface will look oily and slightly grainy instead of smooth. If you skip this step, your curry will taste flat and one-dimensional. Cracking the cream is what allows the paste to fry in coconut fat, which blooms every aromatic compound in the kreung tam.

5. 5

   Fry the paste

   Add the kreung tam to the cracked coconut cream. Fry it, stirring constantly, for 3 to 4 minutes. The paste should darken slightly and the oil should pool around the edges. Your kitchen will smell like a Southern Thai market: turmeric, cumin, lemongrass, roasted spice. Add the cinnamon stick, crushed cardamom pods, and bay leaves. Stir them in. These whole spices are the Malay-Indian signature. Central Thai curries don't use them. Southern border curries do.

6. 6

   Build the curry

   Add the chicken pieces and turn them in the paste until coated. Let them sear in the fragrant oil for 2 minutes. Pour in the coconut milk (the thinner hang kathi). Add the potatoes and onion quarters. Bring to a gentle simmer, then lower the heat. Cook uncovered for 20 to 25 minutes until the chicken is tender and pulling from the bone and the potatoes are soft but not falling apart. Season with fish sauce and the palm sugar. Taste. The South leans sour and spicy, not sweet. The palm sugar is there to round the edges, not to dominate. The fish sauce does the heavy lifting. Adjust until the curry is rich, savory, and fragrant with the warmth of cinnamon and cardamom underneath the Thai aromatics.

   The curry should be saucy, not thick. You're dipping torn roti into it. It needs to flow and soak into the bread. If it reduces too much, add a splash of coconut milk or water.
7. 7

   Stretch the roti

   Oil a smooth, clean work surface generously. Take one dough ball and press it flat with your palm. Now stretch it. Place your hands underneath the dough and use the backs of your hands and your knuckles to pull it outward, turning as you go. Work from the center to the edges. The dough should stretch into a paper-thin sheet, thin enough that you can see the surface beneath it through the dough. Small holes are fine. Perfection isn't the point. Thin layers are the point. If the dough tears badly, it didn't rest long enough.

   The Hat Yai roti vendors pick the dough up and slap it against the oiled surface to stretch it, a dramatic technique that takes years to master. At home, the knuckle-stretching method on a flat surface works. Don't use a rolling pin. You need the dough to stretch from its own weight and elasticity, not be compressed.
8. 8

   Fold and cook the roti

   Once stretched thin, fold the dough: bring the left third to the center, then the right third over it, making a long rectangle. Then fold the top third down and the bottom third up, creating a square packet. This is where the layers come from. Heat a flat griddle or heavy pan over medium-high heat. Add a generous smear of ghee. Slap the folded dough onto the hot griddle. Cook for 2 minutes until the bottom is golden brown and blistered. Flip. Add more ghee. Another 2 minutes. The roti should be golden, crispy on the outside, and when you pick it up and clap it between your hands a few times, the layers should separate and become flaky. That clap is the finishing move. Every Southern roti vendor does it. It's not for show. It breaks the layers apart.

   Ghee, not vegetable oil. Ghee gives the roti its signature richness and golden color. The Muslim roti vendors in the deep south use ghee or butter, never plain oil. The fat matters.
9. 9

   Serve roti with curry

   Stack the roti on a plate. Ladle the curry into a bowl alongside. Tear a piece of roti with your hands, dip it into the curry, make sure you get a chunk of potato and some of that golden coconut sauce. That's a bite. The flaky, buttery bread soaking up the spiced, turmeric-stained curry: that's the deep south of Thailand on your table. No fork needed. Your hands are the correct utensil here.

Chef Tips

• •This curry paste uses toasted coriander seeds (met phak chi) and cumin (yira), spices that mark this as Southern Thai border cooking. You won't find cumin in a Central Thai green curry. You won't find cinnamon sticks or cardamom pods either. These are Malay-Indian influences absorbed into the Thai system. The paste is still pounded in a krok. The coconut cream is still cracked. The four pillars still govern. But the spice profile tells you exactly where you are on the map.
• •Fresh turmeric root (kamin) is non-negotiable for Southern Thai curry. Dried turmeric powder is a different ingredient with a different flavor: flat, dusty, one-dimensional. Fresh kamin has a sharp, almost peppery bite and stains everything it touches a deep golden yellow. Your hands, your mortar, and your cutting board will carry the evidence for days. That's how you know it's real. Find it at Southeast Asian grocery stores, usually near the ginger and galangal.
• •The roti dough needs fat and rest. Condensed milk adds sweetness and tenderness. Ghee adds richness and helps the layers separate. Resting allows the gluten to relax so the dough stretches without tearing. Skipping the rest is the most common mistake. The dough will fight you. It'll snap back, tear, and refuse to go thin. Give it time. The vendor in Hat Yai doesn't rush. Neither should you.
• •Roti kaeng is breakfast food in the deep south. At 6 AM in Songkhla or Hat Yai, the roti carts are already working. The griddle is hot, the curry pot is simmering, and the vendor is stretching dough in a rhythm that hasn't changed in generations. If you can, eat this in the morning with a glass of hot Thai tea (cha yen). That's the original context. That's how it was designed to be eaten.

Advance Preparation

• •The roti dough can be made the night before and refrigerated. Bring it to room temperature for 30 minutes before stretching. Cold dough won't stretch.
• •The kreung tam can be pounded a day ahead and stored in an airtight container in the refrigerator. The flavors actually deepen overnight as the fresh turmeric and toasted spices meld.
• •The curry can be cooked entirely ahead and reheated gently. It improves after sitting for a few hours. The roti must be cooked fresh, right before serving. Cold roti is stiff roti. No one wants that.

Frequently Asked Questions

Nutrition Information

1 serving (about 480g)