On our trip to Thailand a few years ago, I was captivated by the freshness of the ingredients. The Thai markets are filled with fresh produce and all manner of slaughtered animal parts, which is impressive enough, but then there are the prepared foods - the curry pastes, the sausages, the shrimp chips, and of course, the coconut milk. I had no idea that this was made on a small scale, but after seeing the operation, it made sense - coconut flesh could be shredded quickly, and then a small hydraulic press can crank out a few quarts of fragrant coconut milk every few minutes. We had multiple occasions to taste this fresh coconut milk (and coconut cream, will explain later), and it was starkly different from the thick, somewhat savory canned coconut milk we commonly get in the U.S. Most notably, when you smell homemade coconut milk, it smells like... coconuts! There's no plastic, fatty smell from the preservation of the liquid necessary to get it into cans and across the ocean. The freshly made milk makes no mistake in letting you know what it is, and, as I would soon learn, offers exactly the same unapologetic, coconutty brashness when made back at home with a questionably old coconut. So I watched this process, enthralled by the heavy machinery nestled within the small farmer's market, bound and determined to try replicating this at home with hand tools.
The story wasn't actually that simple. I started out thinking that the magic was all in the paste, with no appreciation for the coconut milk. Coming home armed with curry paste recipes, and having sat on the floor smashing herbs in a mortar and pestle for a few hours, I assumed I was an expert in paste making. But more than a few failed attempts back home led me to realize that those little old Thai ladies sitting around smashing up garlic all day really know what they're doing. Homemade curry paste is truly an art, and I do not have the magic just yet. Maybe it's the freshness of the ingredients, I don't know. All I know is that my pastes are too coarse and lack the depth of the ones made fresh in Thailand, or even the ones from a can here. So after one too many mediocre curries, I broke down conceded defeat, requiring much more practice to this day. Instead, I dug into the process of making homemade coconut milk. Thankfully, the gear required isn't too extensive, but it is somewhat challenging to actually do this, if you use the method I used.
We decided to use the coconut milk as part of a matsaman curry, which we really liked when we made it in Chiang Mai. Matsaman, also written massaman, means "muslim", and isn't actually a Thai word at all - it's a Thai interpretation of the Persian dish, referred to in the 19th century as "mussulman" curry, which is a dated term for Muslim. The analog of this dish is American tex-mex food: it's the native culture's interpretation of what an international dish tastes like, adapted somewhat to the local methods. In this case, the dish borrowed the spices brought to Asia by the Muslim spice traders, including cinnamon, cardamom, cloves, bay leaves, cumin, and star anise, but mixed into a paste and then fried with coconut milk, like so many other Thai dishes. It's said to be favored by westerners because of its more familiar spice palette, but honesty I don't like it any more than a good red (kaeng phet) or green (kaeng khiao wan) curry.
This recipe explores a big hack in the process - how much does homemade curry paste matter? And which is more important, high quality coconut milk, or high quality curry paste. The short answer is both, but the longer answer is that you can get a good curry paste from a pouch, but there is no substitute for homemade coconut milk. Using a commercial paste I brought back with me, the finished dish was so spectacular that I have to question if a mediocre homemade paste is in any way a substitute for a reputable packaged paste. What's more, the fresh coconut milk elevates the dish to a floral, magical level, with the subtle fruity perfume that really takes your mind to the tropics. This doesn't happen with a great curry paste and mediocre coconut milk, by converse. Given this and the other curious additions that make up matsaman curry, I'm going to advocate for skipping the paste pounding step in lieu of making your own coconut milk from now on, so long as you agree to use a decent quality paste. Agreed? Okay, let's move on.