After a recent trip to mini bar at Café Atlántico, I was so amazed and inspired by the food that I decided to learn how to recreate one of the 30 diminutive dishes served to us during the course of a two-hour meal: the mojito. “But that’s just a drink, ” you say. “Oh, no,” I counter, “It’s not at all.” The mojito at mini bar is a bite-sized sphere of rum, lime and mint that seems to defy physics: it looks solid, but changes to liquid the moment you pop it in your mouth. (A quick scan of the Interwebs reveals this blog entry, complete with photo of the mojito sphere, that describes the mini bar with some detail. [Note to A Certain Someone: note that the blog's author actually bought her better half the Texturas ingredients so that he could try the same techniques himself. Hint, hint. And no, I don't know who they are, it's just an extremely convenient coincidence.])
The chefs at mini bar are very open to discussing some of their techniques and even encourage customers to ask questions, so a rough concept of the technique was already formed in my mind by the time we left. However, some digging around quickly revealed that what was new to me has been around, not surprisingly, for years.
Essentially, there is a style of food preparation and presentation known as molecular gastronomy — though, it seems, the practicioners of this food science insist that it should never be referred to as such — that emphasizes the physics and chemistry of cooking. (At the risk of going too far off track, interest in molecular gastronomy [but don't call it that] has its epicenter in Spain, at a (now legendary) restaurant called el Bulli, which is run by Chef Ferran Adrià [about whom much has been written] — Cafe Atlántico’s José Andrés [also of local faves Oyamel and Jaleo] studied under Adrià for a time, bringing this long aside finally to a round close.)
One of Ferran Adrià’s molecular gastronomy gimmicks is sferificación — spherification, if you will (though Firefox spell-check won’t) — in which a liquid “filling” containing a small amount of a brown seaweed derivative known as sodium alginate is dropped in to a bath of calcium chloride. The reaction between the sodium alginate and the calcium chloride forms a thin membrane around the filling, sealing it into a sphere. Sounds so simple, right? Only with practice.
Armed with my new-found knowledge, gleaned from a few hours of web browsing and two viewings of Decoding Ferran Adria (hosted by Anthony Bourdain), I began preparing for my own spherification experiment. Luckily, my interest in this was piqued well-in to the trend’s lifespan, so the special food-quality chemical ingredients are actually easy to find now…had I been a year or two sooner, I’d be extremely disheartened. I ordered my sodium alginate and calcium chloride from Will Powder (clever, no?), found a scale (precise measurements call for scales) at the local Linens-N-Things (or was it a Bed, Bath, & Beyond?) claiming to be accurate to 1 gram, and was all set to go.
I figured my first experiment might not even be edible, so for the sake of ease I decided to simply try focusing on figuring out ratios and timing. Instead of food ingredients, I simply used water with a little blue food coloring for the filling. I’m pretty sure I used to much alginate, as the filling was viscuous to the point of having a high gross factor. You wouldn’t want a ball of shave gel exploding in your mouth, right? The calcium bath was easy…I think it’s kinda hard to mess-up that half.
The really difficult and frustrating part was the actual sphere-making. Thanks to Decoding Ferran Adria and the world’s longest thread on the topic of spherification, I had a vague notion of how everything should work. But there’s such a difference between reading about something and actually doing it yourself.
I’ll save the exact details for when I get the system down (no sense in leading anyone astray here), so for now I’ll leave you with the photo of the result of my first Spherification Experiment.
