These beef ribs were far and away the best ribs I have ever eaten. Not only did we fail to photograph the first batch because we ate them so quickly, they didn't even get plated because we ate them standing up over the counter. For breakfast. The meat is completely tender and fall-off-the-bone melted, while still being medium-rare. Sauces or seasonings would have detracted from the perfect meat flavor.
"Sous vide" is French for "under vacuum" and cooking en sous vide typically refers to vacuum packing ingredients, then cooking them under very strict temperature control. "Precision cooking" might be a more accurate term, but all gastronomical things tend to gravitate toward the French descriptions. When sealed in plastic, the aromatics cannot vaporize so flavors are more intense, and food can be cooked in water baths held at specific temperatures for long periods of time without the water soaking or otherwise changing the texture of the food. Sous vide is a food service technique that has been embraced by the world's best chefs, and with some equipment that is not outrageously expensive, you can duplicate some of their dishes.
My two favorite references for sous vide are Thomas Keller's Under Pressure and A Practical Guide to Sous Vide Cooking by Douglas Baldwin.
Here's the short form of the recipe:
Salt and vacuum pack as many beef ribs as will fit in your water bath (I prefer grass-fed beef).
Cook at 135 F for 48 hours.
Sear with propane torch.
Eat immediately - sharing is optional.
Step 1: Sous Vide Equipment
Restaurant and food service-level sous vide equipment can be quite expensive. I managed to spend under $200 in addition to equipment I already owned for an at-home sous vide setup. I use:
Sous Vide Magic PID temperature controller purchased from Auber Instruments on Ebay
cheap crock pot1 without electronics (just an on/off switch)
FoodSaver Vac 200 (the link goes to a model that's close enough) Vacuum Sealing Kit (borrowed from helava)
Update: since I purchased my equipment, Sous Vide Supreme has started making an all-in-one unit designed for home use. The regular 10L unit is $400, and the still-quite-roomy 8.7L Demi is $300 - comparison here.
1 A rice cooker or electric kettle can also work; the variables are size of container, and speed of heating. I usually pre-heat the water, as crock pots heat up VERY slowly. We've got an industrial-sized rice cooker on order. The key is to make sure your heating device doesn't have a brain, as the PID controller works by cycling the power on and off and you can't be resetting your crock pot each time.
Step 2: Salt the Meat
Salt the meat. I "rain" about a teaspoon of coarse sea salt on each rib section.
Step 3: Vacuum Pack the Meat
Vacuum seal the meat.
I'm using a "channel-type" vacuum sealer; professional chefs will use a chamber sealer. The primary difference is that a channel sealer has difficulty sealing liquid into the bags (because it tries to suck the liquid out). That doesn't matter for this recipe, but for other sous vide recipes I get around this by freezing the liquid ingredients, then vacuum-packing them as solids.
Step 4: Precision Cook the Meat
Cook in a 135 F water bath for 48 hours. The cooking accomplishes two things: it melts the collagen, making the meat tender, and it kills most pathogens. A Practical Guide to Sous Vide Cooking is a good reference for just how many of the pathogens are killed at what temperature over what time period.
I found my crock pot to work fine for this recipe, and to have good temperature stability and homogeneity. It is, however, a poor choice for short sous vide cooking because of its relatively low power. It cannot respond quickly to fluctuations (say throwing in a pound or two of 40 F meat). If you want to cook a piece of sirloin for 30 minutes at 125 F, the crock pot can be frustrating to use. I've got my eyes peeled for a used large commercial rice cooker...
After two days, take the meat out of the vacuum bag. The small amount liquid is tasty, and due to the melted collagen and gelatin will solidify when it cools. Be sure to reserve it for use in stock or gastrique.
Step 5: Sear the Outside of the Meat
The meat is now fully cooked, but it won't smell done because it's not seared. Seared meat smells good. There's something deep in our genes that tells us to kill animals, cook them with fire, and eat as much as possible because those high-quality calories will make us more likely to reproduce. Or something really close to that.
Searing temperatures are much higher than cooking temperatures, especially sous vide cooking temperatures. If you bring an entire piece of meat to searing temperatures, it will be overcooked and dry, so you only want to sear the outside. This way you get all those nice Maillard reaction products and seared-meat smells on the surface, and perfectly-cooked meat on the inside.
Here, I'm using a propane torch to sear the outside of the beef ribs. Briefly pan frying them in hot oil, or putting them on a hot grill also works. Note that we're only talking a minute or so - this really is just for surface effects.
Step 6: Immediately Eat
Eat them standing up! It's ok, they're that good.
Alternatively, serve them as the main dish at a super-fancy dinner party. Either way, they'll probably be the best ribs you've ever tasted. While you can add the sauce of your choice, it really is gilding the lily.
Strip every bit of meat off the bones, and lick your fingers. Save the bones for making stock - I just bag them and toss them in the freezer for later.