The idea from this course came from my favorite way to eat baked potatoes as a kid. We had baked potatoes whenever my Dad grilled steaks, and when he grilled steaks, he always glazed them with barbecue sauce as they cooked. When they were finished, he'd put all the steaks on a big plate to hold until we sat down to eat them. In the couple minutes it took us to wash up and gather at the table, the steaks would (it turns out) rest, which helped them stay juicy, but as they rested some of their juices would collect in the pan and commingle with the grilled barbecue sauce glaze. After we all took our steaks, my father would split open his baked potato, add butter, and then pour all those accumulated beef and barbecue juices all over the baked potato. It was delicious, and I started doing it, too.
This dish started out as a way to play on that taste memory. Instead of baked potatoes I used sunchokes and, since this was for a vegetarian dinner I couldn't use any beef juices. I tweaked this in a number of ways, but the end result indeed a good tribute to the baked potatoes of my youth.
The sunchokes were peeled, with all their knobby parts removed in the process, and held in cold water until used (to reduce oxidation). All the sunchokes were then vacuum-sealed in bags with salted whey (the byproduct of making the ricotta for the next dish at the dinner). They were cooked sous vide at 85C for 50 minutes, then chilled, drained and dried on paper towels just before serving, then sauteed and basted in lots of butter.
I also made sunchoke chips by slicing the sunchokes thinly on a mandoline then deep-frying at about 325F until fully golden and dried. Don't worry about peeling them before slicing if you're just making chips. Drain them on paper towels, then put them in an airtight container with desiccant packs. They'll keep for a week or so.
Along with the sunchokes I served a buttermilk gel (recipe below--a bit of a feat to use gellan for something with so much calcium), a barbecue gel (barbecue sauce and water in an equal proportion, so that the BBQ flavor wouldn't be completely overpowering but it would maintain the look of barbecue sauce, gelled with .7% gellan F then pureed and pushed through a chinois), a barbecue streusel, and buttermilk powder (olive oil, tapioca maltodextrin, salt, and powdered buttermilk).
The celery is not just a garnish. It really ties the whole plate together with the fresh, crisp texture and strong flavor.
Buttermilk Gel
190g water
310g buttermilk
1g sodium citrate
.5g sodium hexametaphosphate
3.5g gellan "F"
Calcium interferes pretty badly with gellan gum, so this recipe sequesters the calcium using two sequestrants: sodium citrate and sodium hexametaphosphate. Shear the sequestrants into the buttermilk. Shear the gellan into the water. Then shear the water and buttermilk together. Heat the mixture to at least 200F in a saucepan, stirring constantly once bubbles appear around the outside of the pan. Immediately pour the hot mixture into a shallow dish and refrigerate until fully gelled, which won't take more than twenty minutes or so, and will start happening immediately. Once fully gelled, cut the gel into inch cubes and puree them in a blender, doing whatever is necessary to get them to spin (this works best if you are making a larger quantity, such as twice the quantity listed here), such as picking up the blender and shaking it vigorously while it's on. Once it's fully pureed, push the resulting fluid gel through a chinois or tamis and refrigerate for up to two weeks.
Posted by Barzelay on 2010/02/02 @ 5:17 | Comments (6) | Food Additives, Lazy Bear, Sauces, Condiments, Veggies, Fruit, Grain, Cheese
Comments
It is my great pleasure to visit your website and to enjoy your excellent post here. I like that very much. I can feel that you paid much attention for
those articles, as all of them make sense and are very useful. Thanks so much for sharing. I can be very good reader&listener if you are same searching for all to be good. Appreciate for your time!
Happy New Year!
http://www.buy-cheap-uggs.com
Posted by: nike basketball shoes at February 4, 2010 2:22 AM
David-
Why not use Agar in place of Gellan here if you are going to puree the gel and serve it cool? Is it a different texture? Does Agar react with Calcium as well?
Posted by: E. Nassar at February 4, 2010 11:16 AM
Hi Elie, I have three good reasons for not using agar here:
First of all I have sworn off agar for any dish that isn't seafood-based, because I find agar's seaweed flavor extremely strong and disgusting when it doesn't fit the flavor profiles of the dish; gellan gum is, to my palate, flavorless.
Second, the sauces are served hot, so an agar gel would liquefy.
Third, agar gels exhibit much greater syneresis than gellan gels, so if I make the sauces a few days ahead of time they'll be all watery by the time I use them. That can be fixed somewhat with the addition of xanthan gum, but not entirely.
Suffice to say, I don't really like agar and rarely use it.
Posted by: Barzelay at February 5, 2010 10:01 AM
I know sodium hexametaphosphate is a ph raiser, a preservative and a sequestrant...but all this seems kind of vague. Can you elaborate???
Posted by: brandon at February 6, 2010 8:11 PM
Of course. I certainly see using Gellan if the purees are warm. For some reason I assumed they were cool.
I honestly never noticed any strong flavor when I use agar though.
Posted by: E. Nassar at February 9, 2010 7:14 PM
Brandon, the sodium hexametaphosphate (and sodium citrate) are used in this case to sequester the calcium. Otherwise the calcium interferes with the gellan because [insert chemistry knowledge here].
E. Nassar, most people apparently don't notice the flavor of agar. I don't usually have the most sensitive palate, but for some reason agar's flavor has always bothered me. Everyone agrees that it isn't flavorless, but for most people its flavor is easily masked. I still use agar when it's absolutely necessary (when I need a brittle, thermoreversible gel for kosher/vegetarian/vegan diners) and when its flavor will complement the flavors I'm already using (generally, anything with East Asian flavors).
Posted by: Barzelay at February 20, 2010 11:45 PM



.jpg)