Why— in the dead of winter— do I crave bright exotic flavors? I suppose it's a countermeasure to the bleakness of January; a physical reminder that somewhere on this planet the earth is producing things that are juicy and ripe.
Many food trend lists for 2010 include eating locally and seasonally. Admirable goals, certainly, but I live in the frozen tundra Northeast, and if I were to adhere strictly to that, I would be starving right about now. And even worse, there would be no citrus fruits of any kind.
I never fully realized how indispensable citrus is in cooking until I had to do without it, as the Native Americans did— who ONLY ate locally and seasonally. It forced me to analyze why I relied on lemon and lime juice— or any acidic medium. I concluded that it is not merely a crutch, but an essential element of flavor balance that is supported by many of the world's cuisines. Lemons, limes and other sour citrus have distinct aromas that can define or enhance flavor, while acid is a great equalizer. Like salt, it opens up flavors and makes them bloom. A small addition of acid can balance a dish; saving it from being too sweet, too rich, too flat. Relearning all of this makes me more mindful of its role and all the more grateful that I have access to products that don't grow in my climate.
I'll never forget my first encounter with kaffir lime. It was one of those moments that left an indelible impression on my sensory bank. I was eating Thai food— for the first time— at an authentic Thai restaurant. The perfume of kaffir lime leaves was woven through course after course of the most sensual and aromatic food that I had no point of reference or vocabulary for. It was wonderfully exotic.
The first thing I did was to buy a Thai cookbook to better understand the cuisine. 20+ years ago, I had never even heard of things like galangal, nam pla, and kaffir lime leaves, let alone know where to source them. But that didn't stop me from cooking it— substituting ginger for galangal, lime zest for kaffir lime leaves— fully cognizant that it was not authentic. Instead, I focused on learning technique— how to pre-soften dried rice noodles for Paht Thai in warm water, how to make an incendiary and aromatic Krueng Gaeng Kua in a mortar & pestle, how to thicken coconut cream until the surface glistens with oil before adding the curry paste and coconut milk when preparing Choo Chee Goong. When the ingredients finally became available, I was prepared to do them justice.
As I recall, the kaffir lime leaves were the hardest to source. It was a hit-or-miss item at Asian markets. With the advent of the internet, I found a supplier/grower in Florida who was willing to ship small quantities of fresh leaves. Eventually, I became curious about the fruit, made inquiries, and was told that because there wasn't a market for kaffir limes in the US, they stripped the trees of fruit buds to direct its energy to producing leaves. Undeterred, I ordered a dwarf tree that I would grow indoors. It died before setting fruit, along with my hopes of ever tasting a fresh kaffir lime.
Fast forward to last winter. The chef at the restaurant hands me a pair of green knobby fruit that Sid Weiner had dropped off as samples of a new product. One intoxicating whiff and I instantly knew what they were. I had waited over a decade to experience them. Were they worth it? You bet.
This was one of my favorite hors d'Oeuvres from this holiday season. They're so simple that a recipe isn't neccessary. Just mix impeccably picked-over crab meat with a little mayo, minced shallots, scallions, cilantro and kaffir lime zest (or minced leaves) and as much red curry paste as you can handle.. The avocado bases were cut a few hours ahead and kept in diluted kaffir lime juice (or just lime juice with a few kaffir lime leaves tossed in for flavor).
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