Pasta Al Tartufo Nero
Adapted by Kyle Libramonte
Prep Time: 15 min • Cook Time: 25 min
Serves 2-3
Ingredients:
- 1 Large Shallot, thinly sliced
- 4 Portobello Mushrooms, sliced 1/4 inch — scrape the gills out with a spoon first, they hold grit and they'll turn a cream sauce the color of wet cement
- 2 Garlic Cloves, minced
- 1 TBSP Olive Oil
- 1 TSP Kosher Salt, divided, plus more for the pasta water
- 1 Sprig Thyme — whole stem, not stripped; the leaves fall off on their own and you pull the stick out later
- 1 TBSP Butter
- 2 TSP Minced Black Truffle or Black Truffle Sauce — read the jar, if the ingredients say "truffle flavoring" or "aroma" you're buying a lab compound that smells loud and tastes like nothing
- 1/2 Cup Heavy Cream
- 2 oz Shredded Parmesan, plus more for serving — shred your own, the anti-caking starch on pre-shredded is what turns a cream sauce grainy
- 8 oz Pasta — tagliatelle, rigatoni, or anything with a wall for the sauce to grab
- 1 Heatproof Bowl — for parking the pasta, and you want it out and ready before you start
Instructions:
- Run Pasta Mode Short and Save the Water: Salt the water heavily, cook the pasta on pasta mode, and pull it a full two minutes before the box says — it finishes in the sauce later, and anything already tender now will be mush by the time it's coated. Dip out at least a cup of the water into a heatproof bowl before you drain, because that starch water is the only thing standing between you and a broken sauce. Set the pasta aside with a spoonful of the water tossed through so it doesn't weld into a brick.
- Wipe the Insert Down Before Switching to Steam Mode: Dry the insert with a towel, set it back in on steam mode with the lid off, and give it a minute to come up to temperature before the oil goes in. Any pasta water left in the bottom has to go — steam mode is standing in for a skillet here, and it can't brown anything while it's boiling off leftover starch water.
- Shallots Alone in the Oil: Add the olive oil and cook the sliced shallot by itself for 2-3 minutes, lid off, until soft and translucent at the edges. It needs a head start because it's the only thing in this pot that gets sweeter with time — mushrooms crowd it out the second they go in, and shallot added alongside them stays sharp.
- Salt the Mushrooms and Wait Out the Water — Lid Stays Off: Add the portobellos with half the salt and let them sit, stirring only occasionally, until they flood the pot with dark liquid and then cook all the way back down to dry and squeaking. This is the longest step in the recipe and it takes longer than you think. Never close the lid: mushrooms cannot brown until the water is gone, and one lid-on minute undoes the whole step.
- Butter and Thyme Once the Pot Is Dry Again: Drop in the butter and the thyme sprig and let it go a minute or two, scraping the brown film off the bottom. That film is most of the flavor in the dish and the butter will lift it. Wait for visibly dry before the butter goes in — added early it just floats on mushroom water and does nothing but grease.
- Garlic Goes In Last and Barely Cooks: Add the minced garlic and stir constantly for 30-45 seconds, until it smells like garlic and no longer. The pot is hot, dry, and full of fat now, which takes minced garlic from raw to burnt in under a minute. Burnt garlic won't be a background note in a cream sauce — it will be the loudest thing in the bowl, and there's no fixing it after.
- Truffle and Cream, Then Turn It Off: Stir in the truffle and the heavy cream and let it reduce 3-4 minutes, until it thickens slightly and takes on a light tan color from the fond. Hold back half a teaspoon of the truffle for the end — the aroma compounds are volatile and simmering drives them off, so what survives the reduction is body and what you add after is smell. Pull the thyme stem out, then switch the unit off rather than leaving it idling.
- Everything Together in the Residual Heat: With the unit off, stir in the parmesan and a splash of pasta water until it disappears, then add the pasta and toss, loosening with water a few tablespoons at a time until the sauce coats and pools slightly. The stored heat is more than enough to finish the pasta, and you don't want the element on for it — parmesan hit with direct heat seizes into strings and grit. Season with the remaining salt and serve with more parmesan and the reserved truffle over the top.
Note:
- Sauce too thin and thinking about more cream? Add more pasta water and toss harder instead. Cream thins a sauce before it thickens it and mutes the mushroom while it's at it — the thickness you want comes from starch and agitation, and thirty seconds of hard tossing beats another quarter cup of dairy. Use tongs and lift from the bottom rather than stirring in circles. Doubling the batch is what kills this: eight portobellos at once will never stop releasing water, and you'll be steaming mushrooms instead of browning them. Brown them in two rounds and combine at the cream stage.
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