Gaeng som cha om kai: something hot in a cold country (แกงส้มชะอมชุบไข่ทอด)

rarely cook the same dish two times back to back. With all the diversity available to us these days, it would be a shame to get stuck in a culinary rut. Moreover, my penchant for dietary diversity is in line with the little theory that I have recently developed. See, most of us eat the same stuff , week in, week out. It will be mostly what we like, what we know how to cook, or what is available in our local supermarket.

That kind of skewed pattern of food intake deprives our bodies of a multitude of nutrients. Your body, like a house, needs constant maintenance and you need as many various amino acids, polysaccharides and enzymes as possible to make sure that you keep the temple of your soul in the best possible condition.

This week the sunny and crispy cold weather in London has put me in the mood for some spicy food. The contrast between the chilly air outside and the warm, fuzzy glow of chilli peppers and ginger inside is one of the greatest carnal pleasures. I decided to whip up some gaeng som (แกงส้ม, alternative spellings: kang som, kaeng som, gang som) - spicy-and-sour Thai soup normally served with an acacia omelette. I cooked it on Sunday, to give my cold limbs a perk after a nice afternoon hang-out in Regent's Park, and then once again on Wednesday for a dear guest.

Here, in one serving, I had a most cosmopolitan congregation: mussels from New Zealand, rice from India, shrimp from Greenland, eggs from Britain, fish sauce and tamarind from Thailand, tomatoes from Italy and onions from Egypt. To paraphrase Confucius: "有菜自远方来，不亦乐乎?" ("When food comes from afar, is that not delightful?")

So here is the recipe:

Kai cha om (ไข่ทอดชะอม) (acacia omelette)

1. Take 100 g fresh cha-om (see the picture below) and pinch off the soft leaf parts and the most tender twigs. Discard the branches and stems. Watch out for the thorns!
   
2. Tear cha-om in two half-inch pieces and fold 4 fresh free-range eggs and a dab of fish sauce.
   
3. Heat a skillet, cover the bottom with a bit of vegetable oil and, when the oil is hot, tip the egg and cha-om mix.
   
4. When the omelette is ready on one side, flip it over and wait until the other side gets nicely golden brown.
   
5. When ready, remove from the fire and cut into inch-by-inch squares.

Gaeng som (แกงส้ม):

1. Peel one medium red onion, half a head of garlic, one-inch piece of ginger. Mince it all with 3-4 prik kee noo peppers in a mortar, and mix with juice of one lime, half a glass of tamarind juice, a tablespoonful of kapi (shrimp paste, crucial for the right flavour!) and a nice glug of fish sauce.
   
2. Marinate whatever you are planning to put in the soup - shrimp, shellfish or fish - for at least half an hour.
   
3. Bring 2 glasses of water to a boil, add a handful of haricot beans and a few garden eggs cut in quarters.
   
4. Add the marinating mixture (1) to the soup, simmer gently for a couple of minutes, then add a can of chopped tomatoes and the fish/shellfish.
   
5. Gently simmer for a few more minutes.

Serve gaeng som in a bowl topped with a pieces of omelette and freshly steamed rice on side.

Now for the soundtrack: Something Hot In A Cold Country by Echobelly