Probiotics What?! - Sous Vide Yogurt

Super cool way to make yogurt!  If you have a sous vide device, of course... 

I mean, who needs probiotics if you actually know what they are? If you eat yogurt at all, or naturally fermented pickles or sauerkraut or any cultured foods, you are getting probiotics in a totally natural way. And yes, that includes yogurt!

I love making homemade yogurt and as you may have guessed from some of my previous posts, I am especially fond of gadgets and cooking tools.

I've used several yogurt making tools in the past but when I moved to Florida, the bottom heating element of my favorite yogurt maker got lost somehow in the move.

No big deal, I thought. As I have my YoLife non electric thermos yogurt maker, I knew I wouldn't really have to do without. My Euro Cuisine yogurt maker was great, but still... just couldn't quite find it justifiable to buy another uni-purpose kitchen tool. Getting more practical in my culinary old age and even more particular when it comes to storing bulky tools in my limited kitchen space. Let's face it, no matter how big your kitchen is, if you love to cook, your space is always limited.

When it comes to making good quality yogurt, it is as simple as this: you must start with good quality yogurt and good quality whole milk. No way around it. And therein lies it's most rewarding feature. You can use virtually ANY good quality yogurt you like as long as it has active yogurt cultures. In fact, reading a label should be quick because it should really only have one ingredient: cultured dairy. Cultured dairy is actually comprised of two ingredients. Dairy (milk or cream) and live active cultures. Often, the active cultures will be explicitly labeled as well.

When choosing yogurt as a starter, I'm a purist in this regard. Not to mention, I'm not a fan of artificial anything... not a fan of preservatives, additives to alter coloring or artificial flavorings of any kind. But that is a personal preference to be sure. I suppose it bears mentioning though, that if you want the benefits of probiotics you need to dispense with the artificial sugars, additives and preservatives, etc. Defeats the purposes of probiotics in the diet, which is to course correct the over indulgence all of us have for processed foods containing sugars and all the bad juju associated with today's modern illnesses, including obesity. Do your gut a favor and go as natural as you can, from time to time.

For the sake of this blog post, I am referring to dairy yogurts made from milk.  I have made other types of non-dairy yogurt for the paleos out there, but really, my heart always comes back to whole milk yogurts.

If your yogurt contains additives or preservatives or flavorings or gelatins or thickening agents like guar gum, etc. just leave it on the shelf... It won't produce a clone of the original product no matter what you do and you may be inclined to think it is harder than it really is or that you've done something wrong.  Trust me on this, you haven't done anything wrong. But for the sake of replicating your favorite yogurt, your yogurt choice matters. After all, who can replicate unnatural manufactured yogurt with an indefinite shelf life? Yogurt is a fresh product and the fewer, natural ingredients involved, the more likely you are to replicate it to perfection... Yogurt is alive. You know you have the right one if it contains 2-3 natural dairy ingredients and ACTIVE or LIVE cultures.

In order to replicate yogurt indefinitely, you need to think of it the same way as you think of other cultured and fermented products. Cultured products need to be fed. Like sourdough... If you've ever worked with sourdough starters, the concept is exactly the same. The culture or starter needs to be fed regularly in order to multiply and culture the newly added fresh ingredients. You add more flour and water to a sourdough starter and the starter feeds on the fresh ingredients, culturing the new ingredients to make more sourdough. If done well, the cultures can live almost indefinitely.

The way this works in yogurt is much the same way.  You take a starter yogurt, such as Dannon whole fat plain yogurt, add fresh whole milk to this and leave it for 12-24 hours to culture the new milk.  That's it.

Well, almost.  The reason there is no finite time is that everyone's environment and kitchen temperature is different. In days of old, yogurt was made by heating yogurt in a thick vessel designed to retain the heat and then left overnight or up to a day to culture.

The reason for this, and I won't go into extraordinary detail (or I guess I already have :) is because yogurt is a mesophilic culture. What does that mean??? Well, it means it cultures at a medium temperature range, which means a yogurt culture must be kept at 110 degrees during the culturing process.

That is what these high priced and lower end yogurt makers do... they maintain a constant temperature for the culturing yogurt. Nothing more or less. If you want to make a lot of yogurt, you need a big vessel or large yogurt making appliance. If you do just a pint at a time, a smaller tool will do the trick or you can do it the old fashioned way as well.

BUT... if you have a sous vide device, you can do so much more than just make yogurt!! Not only can you make incredible steaks, soups, eggs, sauces, fish, etc... but you can make as little or as much yogurt as you want!

Here's what you need:
Fresh cultured whole fat plain yogurt
Fresh whole fat milk
Sous vide device (110 degrees F, 12 hours)
Jar or glass container with a fitted lid

There is no special ratio of yogurt to milk, or maybe there is, but in my experience it is very forgiving. What is important is to have active live cultures in your yogurt and fresh whole milk. You can absolutely use percent or low fat or skim milk, but to make your new starter, I recommend whole milk. It makes a thicker, luscious product that sets up so nicely. But do what you must.... I'm never one to stick with the rules either. :)

As a guide:
1-2 tbsp yogurt to 1 cup of milk

Or for someone that doesn't mess around:
1-2 cups yogurt to 1 half gallon (64 oz) of milk

Now if those ratios don't quite equal each other, I send love and apologies as the Pioneer woman likes to say. I send love and apologies to her for stealing that line because I love it so much.

I use whatever vessel I'm going to use to store it in to finish the process. To me, that is absolutely a large 1/2 gallon mason jar from Amazon. (These work beautifully for the broccoli and cauliflower soups as well as the Oyster stew my Florida boy loves to make.) I also have a vacuum sealer with the jar attachment that I use to seal the jars prior to putting in the sous vide water bath. But hey, if you know you will be eating it right away, why bother vacuum sealing it, right? Me, I will make a couple of these at a time.

Method:
Add your yogurt culture to the jar, followed by the milk and shake with the lid on or stir very well to incorporate the yogurt with the milk. If you see yogurt settling on the bottom of the jar, keep going. You want it well distributed.

Sous-viding (yep just made that up!):
Start your large sous vide bath and set the timer for 12 hours with a temp of 110 degrees F. At a constant, precision controlled temperature, you can almost certainly reproduce consistent results in a consistent time frame if you ensure that you started with enough cultured yogurt for the amount of milk you use. In this case, overachieving is better than underachieving and by that I mean, when in doubt, use more yogurt in your ratio than using less. You won't hurt it by using too much but it may take longer to culture if you use too little. How do you know? Well, it will set up and look fairly solid, not liquid-y. And you will see it jiggle in the jar. So scientific, huh? Haha.

Yogurt styles:
Do it a few times and you will get the hang of it.  And guess what? If you like Greek yogurt, start with Greek yogurt. Just follow the guideline I provided: whole fat plain Greek yogurt, no additives or preservatives of any kind, including sugars or sweeteners. Greek yogurts are a different culture than say, American style yogurts. If you like Lebanese yogurt, use that. Indian yogurt? Use that. Use what you love as long as it fits the bill.

Yogurt Flavoring:
And if you want a Greek honey yogurt or flavoring of any kind, just wait until you make the yogurt and it is refrigerated.  This is the finished product. You can flavor the finished product with whatever in the world floats your boat. Fruit or berries, sweeteners like honey or agave or organic sugars or you can even do savory flavorings.... Can you say Tzatziki? Neither can I but I sure do love Tzatziki.

**And just in case you weren't sure, yes, you do need to refrigerate your yogurt once you are done.

How to Make Quark

This year was an amazing year in regards to my culinary education.  I usually make New Year's Resolutions and for 2012, most of my resolutions centered around exploring new things and improving upon my limited knowledge of other things. This year, for me, was all about documenting my experiences with the things I personally enjoy the most, which are gardening and cooking.

On the list were things like:

1. Learn how to make cheese.
2. Learn about raw diets and improving health
3. Grow better beets.
4. Improve my techniques for propagating roses.
5. Practice acceptance and tolerance.

So, it's clear some of those items are lifelong ambitions. I'm ok with that. I recognize the importance of learning new things, improving old skills and practicing a wide range of objectives I am neither new to or good at, but one of my passions is food and as such, this gives me quite a wide canvas with which to practice, practice, practice.

I made quark for the first time this year and after seeing how easy it was, it is really hard to imagine why this lovely, creamy, soft cheese isn't available here in the U.S.  At least, I've never seen it in a store and the closest thing I have seen is what the ethnic groceries call "farmer's cheese". No idea yet whether this is the same, but something tells me it is not.

Quark (pronounced just like it looks) is the European's version of  "philly" cream cheese. In fact, when you are in Germany or Austria, they may not know what cream cheese is but if you say "Philly", they know exactly what you mean.  They look similar but they are not at all the same ball of cheese. 

Americans have not been properly introduced to this delicacy, so I am happy to do the honors if this is new to you, too.  Trust me, you will love this cheese if you have any cheese loving qualities in your heart at all. It is not only easy to make at home but it can be eaten sweet or savory, as well.

Ingredients:

1. 1/2 gallon of organic cultured Buttermilk (as fresh as possible; check the dates!)
2. 1 gallon of organic whole cow's milk (as fresh as possible; check the dates!)

How to Make Quark:

1. Let milk come to room temperature and then combine the milks into a large stockpot that can hold your milk. You can use more or less of the two milks above. Those ratios don't have to be exact. This ratio is a bit overkill and lazy, however, it works well. Regardless, I try to use at least a 1-4 ratio of buttermilk to milk.  Use a pot with a lid so you can keep it covered while it does its magic.
2. Let milk sit at room temperature overnight or up to 48 hours. It shouldn't take that long but since this is a mesophilic culture, it means that this culture requires "meso" or medium temperatures to culture properly. In cheese language, that means not too hot or cold, so warmish room temperatures are ideal. In the winter in Minnesota, it can take almost two days if my kitchen is on the cool side.
3. Once the whole pot has cultured, it will look almost solid, like a good set jello mold and it is ready.  You are supposed to cut the quark with a long knife or spatula in a grid pattern. This creates the "curd" and allows it to separate from the whey. Curds and whey? Little Miss Muffet was probably making quark... Not entirely necessary but kinda fun in a messy kid sort of way.
4. Strain the quark to drain off excess whey.  Here, you can make it as dry or as soft as you like. The longer you strain it, the dryer in texture. Too dry, it gets a tad crumbly but some Germans like it this way. Too wet and the cheese will weep a bit, pooling whey in the cheese, which some Germans also like. It's up to you so test it along the way to see what you prefer.  And in case you didn't know better, save the whey! It is very nutritious and you can use it to make bread, soup, stock, broth, or feed your plants. Seriously, it is just as valuable as the cheese itself.  You can even drink it.

What to do with it?

1. Make German Cheesecake, duh?!
2. Make Breakfast quark - German equivalent to yogurt with fruit preserves or fresh fruit. They love pineapple. Interesting and true.  This is pineapple, quark and condensed milk for sweetness. Super yummy.
3. Add chives, onions, salt and pepper and serve it with baked potatoes. You won't go back to sour cream... ok, maybe you will want this AND sour cream. :)
4. Spread it on toast with some jelly. By now, you know what to do with this... if not, figure it out because it is some righteous cheese. 
5. Make Stollen!!  oh yea!  one of my all time favorite Christmas classics, unplugged! I will post my recipe for that in my next post hopefully because my first try rocked my world and the secret ingredient was in fact, my homemade quark!  This is even better for Christmas than my Dad's favorite Christmas raisin bread.

If you don't know what any of this is... then open your mouths, your bellies and your minds, American friends because you are about to be blown away by this little cheese with a million purposes. All good eats, no matter who you are. Unless of course you are allergic to dairy then we have to find something goat-y for you... I made a chevre cheesecake last week and that was pretty darn easy and awesome, too, so stay tuned and by all means, let me know how this works for you.