25 Oct 2016
This is a play on a dish by ChefSteps where they make sous vide pastrami over a period of about 10 days (!) to develop great smoky flavor and tenderness, and serve it on a pumpernickel crisp with pickled mustard seeds and a red cabbage puree. I didn't want to spend 10 days making pastrami, so I cooked beef short ribs for 24 hours instead, and used a beet puree that I had leftover from my recent duck dish. You'll notice they (unintentionally) have a very similar structure: a red meat paired with an earthy beet puree (serving as 'sauce'), and a pickled element (for acidity, to cut richness). Many dishes look the same when you have the fundamentals down! Short rib is a very rich fatty cut, and we'll be adding a strongly-flavored spice crust. However this works due to the small portion size; this works on a multi-course menu but you would probably not want an entree-sized portion of this!
You'll notice the meat is perfectly pink from edge to edge, with very thin crust for flavor - this is the power of sous vide! No more graying overcooked edges!
There are two types of short rib you might find in your local market: English style, cut parallel to the bone, and Flanken style, which are thinner and cut across the bone. We're using English style here. It's a large, fatty cut that needs long, slow cooking to break down the tough collagen. ChefSteps has done an extremely detailed breakdown of the effects of different temperature and cooking time combinations (up to 72 hours). I chose to do 24 hours at 144F for a more tender steak-like texture that can be cut with a knife, rather than a total fall-off-the-bone texture. Take a look at the guide and choose to suit your tastes!
This is the first long cook I've done with sous vide, which is a great chance way to showcase its unique cooking abilities. If you don't have a vacuum sealer, make sure you're using strong freezer bags and monitor for signs of leakage during the cook. Either way with long cooks you'll need to monitor for evaporation and add water as necessary; putting a lid on top of the bath greatly reduces water loss to evaporation. I use a makeshift lid made from aluminum foil. I chose not to add fat (oil) to the bag, like you would usually do for proteins like chicken and fish, as I was concerned about its effects during a long cook, and this worked out fine.
Pickled mustard seeds add a tangy acidic pop to the dish. We're basically following the ChefSteps pickled mustard seed recipe, which you'll notice looks very similar to the pickled parsnip recipe from the duck dish. Many pickling recipes are similar: combine water, vinegar, aromatics, sugar and salt, bring to a boil, pour over your product, and let mellow for a few days. We're doing the exact same thing here, just with improvised quantities.
Finally, Chefsteps provides a recipe for the pumpernickel crisps which calls for freezing the loaf and then slicing it extremely thinly on an electric slicer before briefly baking to crisp them up. Unsurprisingly I don't have an electric slicer, but found the loaf I bought came pre-sliced into thin slices anyways. If you buy a solid loaf, try freezing the loaf and doing your best with a knife.
For 2 servings.
1 English style beef short rib
Dry rub for the beef crust, or just salt and pepper
Pumpernickel bread
Watercress or other greens, for garnish
Finishing salt such as Maldon
2 Tbsp mustard seeds
1 small jar
1/4 cup champagne vinegar
1/4 cup water
1/2 tsp sugar
1 tsp kosher salt
3 red beets
2 large cloves garlic, peeled
1-inch section ginger
1 Tbsp butter
3 Tbsp chicken broth
Sous vide setup
Vacuum sealer (optional)
Blender or food processor