Showing posts with label Molecular Gastronomy. Show all posts
Showing posts with label Molecular Gastronomy. Show all posts

Saturday, January 02, 2010

Vegan Methyl Cellulose Marshmallows.

I took posession, late in the last year of a box of alchemical culinary tricks from France. Pipettes, calcium chloride, and the bould sodium alginate, for ravioli and caviar, a syringe, for roasting fowls, filling chocolates and eggs and, inevitably, the diabetes my sweet and sugar addiction is nicely nursing. (I wonder what insulin actually tastes like).

I also ordered some methyl cellulose, inspired by this post on the Playing with fire and water food blog. Great photos, engaging experimentation, beautiful food and challenging recipes, including this one for methyl cellulose marshmallows. Worth a number of visits. For non dairy animal free types, the methyll cellulose is plant derived, giving an entriely vegan marshmallow.

It's a straight forward, easy to make recipe, taken directly from the above site, and a good introduction, for me at least, to the chemistry of cooking.

Weights, including for water, are in grammes.

230g of water
90g of sugar
4.5g of methlycellulose
1/2 tsp of vanilla essence
icing sugar

Boil up the water and sugar. Let it cool, and add the methylcellulose and vanilla. Blend them thoroughly with a stick blender.

Cover and chill for two hours.

Preheat your oven to 150 C.

Remove from the fridge. Add to your mixer, or blender, and beat on high until fluffy (it took about four minutes in the faithful Kenwood).


Spread the mix out in a mold or on a tray - it doesn't seem to rise too much, and holds it's shape quite well - and pop it in the oven for about 5 minutes, until set.

Voila, marshmethylmallows.


The texture I found to be lighter than classic marshmallow - not as gelatinous, gloopy, or chewable. On the plus side, the vanilla flavour came through more cleanly (no flour/starch to emblanden it?) and the texture had a delicious lightness, much more foamy than I was used to. It also behaves like marshmallow when toasted, browning and crisping up on the exterior.

Unfortunately, instead of using it, I left it out, and when I returned, it had leaked out a lot of clear liquid - presumably the emulsion coming apart - and was left with a toughish plasticised skin. One of the properties of methylcellulose is that it gels at higher temperatures, and becomes liquid as it cools. It will hold it's shape for circa 15 minutes, before liquifying. Solution, hold it in a low oven until ready to serve.

All in all, a success.

Tuesday, October 27, 2009

Chocolate Mousse....

Herve This style., or so, of entirely unexpected cooking. A kind of year of cooking dangerously, or so I had imagined it before the Julie and Julia film came out.....

I've ordered the chemicals, picked out the recipes, made a list, and the next months are to be spent cracking open pigs skulls, pressing pates, whipping up oddly flavoured spheres, caviars, and counter instinctual constructions. And working on more classical skills.

Chocolate Chantilly, a mousse of chocolate and water. Entirely easy, and utterly contrary to what had been cooking convention - don't mix chocolate and water. The actual end result is light, with a good texture, and tastes purely of chocolate. No fatty medium(other than that already in the chocolate) to carry the taste, or coat the tongue. No dairy, no egg, no added sugar. Just a pure, clean, concentrated hit of chocolate in mousse form. Almost too intense......
The video is posted below, permanent link here...

Generally, adding water to warm chocolate results in a grainy, coagulating, sticky and depressing mess. Because, in small amounts, water encourages the sugars and certain other elements to clump together in larger globules, creating an uneven, clumpy and grainy end product.

In this recipe, rather than mixing water in chocolate, chocolate is mixed in water, Think of it as an emulsion. Think of oil and water. Think of the fact that they don't mix. Except when they do. Mayonnaise. Oil is added drop by drop, and continually whisked, into egg , yolks or whites, which contain quite a lot of water can be used. The lecithin in the eggs is the emulsifier, helping bring the whole mix together and stabilise it. The whisking keeps the globules small enough for the emulsification to work. It's the same deal with a vinaigrette, with mustard often used as the emulsifier, and shaking the bottle mixing up the molecules, and keeping all those globules, or fat droplets nice and small. The vinegar contains the water.

The same principles as in mayo and vinaigrettes, roughly, appear to hold with this recipe. But you need enough water for it to be the medium that you are mixing in. With small amounts of water, you get grainy, unemulsified, clumpy depressing mess... The chocolate I used contained soya lecithin, an emulsifier, and the mix took on a whipped cream texture - not quite mayo, but in the ball park. Your choctolate may contain this, or others - esters of citric acids, mono/di glycerides......
My guess is these help, but that's just my guess.....

Advantages of this recipe:

It's quick. 20 minutes from opening up a bar of chocolate to having a set mousse.

No fridge time.(You can make it after the main course, and serve straight)

No added dairy, sugar, or eggs.

A really clean and intense hit of the chocolate you use. If you use Valrhona, that's what it tastes like.

The taste of truffle, with the texture of mousse.

If you screw it up - and I did. Just pop it back in a saucepan, and start again.



Recipe.

200 ml of water.
225 g of dark chocolate (circa 70%)


I used two cheap Tesco own brand slabs of 70 percent nonsense, to work on technique.

Prepare an ice bath - one bowl with ice, and a little water, and a second, smaller bowl, to sit inside this.

Add the chocolate and water to a saucepan. Heat over a medium flame, stirring constantly, until the chocolate melts.

Remove from the heat.
Pour into the smaller bowl, and place it in the ice bath.
Whisk, like billy-o, in the words of Mr Blumenthal.
You should, eventually get a double cream, and then a whipped cream, consistency. Stop here. Much more and it will be over-whipped.

And here you go....





Chocolate Chantilly....
Recipe notes:
Don't over-whip.
Use an electric mixer, and finish off with a handwhisk.
Because the taste of chocolate is so clean, the quality of the ingredient must be high quality.
The intensity means that, except for dark chocolate fiends who consume vampirically, small amounts are the ethic.
Can this work with lighter chocolates?
Additional additives - orange oil, bergamot, vanilla essence........