French

Duck Magret (Sous Vide → Kamado Sear, Grapefruit Gastrique)

Moulard duck breast, fat cap scored in a 5 mm crosshatch. Two hours in a sous vide bath at fifty-seven degrees Celsius produces perfect medium-rare edge-to-edge. Eight to ten minutes fat-side-down on a kamado at 260 degrees renders the fat cap to a crispy lacquer. Two minutes skin-up to finish. The grapefruit-star anise gastrique bridges rich duck fat to citrus acid in a single sticky spoonful. The dish Pablo cooked first on March 8, 2026, as the opening recipe of his Umami collaboration.

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Main Course · Centerpiece · Showcase
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Moulard duck breast (magret) — pasture-raised, US or French
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2-4 as main (one 450 g magret = 2 generous portions)
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2.5 hours (2 h SV + 15 min sear + 10 min gastrique + 10 min rest)

Precision + Fire — The Two-Step Showcase

Duck magret is the textbook application for the sous-vide + kamado two-step. The cut has two problems that any single technique fails to solve: the meat is dense, lean, and easy to overcook (even medium-well is tough); the fat cap is thick and needs aggressive rendering to turn from rubbery to crispy. A classical pan sear gives you either properly rendered fat and overcooked meat, or perfect meat and flabby fat. Sous vide alone gives you perfect meat texture but no crust. The kamado alone cooks too fast to render the fat without destroying the meat. The two-step — sous vide first for the interior, kamado for the exterior — is the only method that gives you both.

Pablo's March 8 first cook followed this exact sequence: 57 °C sous-vide bath for 2 hours, pat dry, kamado at 260 °C fat-side-down for 8-10 minutes until the fat is rendered crispy and deeply bronzed, flip skin-up for 2 more minutes to finish. Rest. Slice against the grain. Drizzle with grapefruit-star anise gastrique. Every bite is a complete story: crispy fat shell, precise medium-rare meat, sweet-acid-spiced sauce. The cook took 35 minutes of active work across 2.5 hours of total elapsed time — which is why this recipe is the perfect introduction to SV+kamado synergy. Maximum showcase for minimum real-time effort.

The gastrique is the other half of this recipe. A gastrique is caramelized sugar dissolved in vinegar — a sweet-acid bridge that neither sugar nor vinegar alone can produce. The grapefruit-star anise version is the Pablo signature: sherry vinegar + grapefruit juice + white sugar (NOT raw cane, Pablo learned this the hard way on March 8 — raw cane stalls before caramelizing and makes color judgment difficult) + 2 star anise pods + a pinch of chile flakes. The caramelization produces the color of whiskey; the vinegar reactivates the caramel into syrup; the grapefruit juice and aromatics finish the flavor. The resulting sauce is 80 ml of concentrated magic that elevates any rich meat — especially duck and pork belly.

Moulard magret sourcing (Hudson Valley Duck Farm, Meat N' Bone, D'Artagnan) is already in Pablo's supplier network. The technique scales without change to Pekin or Barbary duck — just adjust time and temp for the smaller, leaner cuts.

Ingredients

for 2-4 as main (one 450 g magret = 2 generous portions)

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Everyday

The Duck

2 Moulard duck magrets (about 450 g / 1 lb each — standard pack size from most reliable sources)
OR 4 Pekin duck breasts (about 250 g each — leaner, smaller, adjust SV to 55 °C/1.5 h)
Fine sea salt (for pre-bag seasoning)
Freshly cracked black pepper (optional — classical)
Optional: 1 sprig fresh thyme per breast (adds subtle aromatic during SV bath)

Grapefruit-Star Anise Gastrique

100 g white granulated sugar (NOT raw cane — see Pablo's March 8 lesson)
60 ml sherry vinegar (Vinagre de Jerez — standard quality works)
60 ml fresh-squeezed ruby red grapefruit juice (~1 grapefruit)
2 star anise pods (whole)
Pinch of crushed red chile flakes (1/4 tsp — adjust to heat tolerance)
Optional: 1 strip of grapefruit peel (pith removed, for extra aromatic)

Substitution Notes

No Moulard? Pekin or Barbary duck breasts work — they are smaller and leaner. Reduce SV to 55 °C for 1.5 hours (lower temp because less fat to render). Sear time reduces to 6-8 min fat-side-down.
No kamado? Cast iron pan works — start cold, heat gradually for first 5 min, then high heat for final 3-5 min. Same fat-side-down-first protocol. The kamado is optimal but not mandatory.
No sous vide? Classical technique: score fat, SEASON, pan sear fat-side-down in cold pan 12-15 min until rendered + crispy, flip 3-4 min, pull at internal temp 54 °C, rest 5 min. Different technique, equally valid for classical French preparation.
No star anise? Substitute 1/4 tsp five-spice powder OR 1/4 tsp ground allspice + pinch of clove. Star anise is ideal; substitutes are acceptable.
No grapefruit? Orange juice works — sweeter, less bitter, different flavor profile. Blood orange is the best orange substitute (more complex). Lemon is too acidic for the sugar:acid ratio — don't substitute.

No Limits

Premium Duck + Gastrique

2 Moulard duck magrets from Hudson Valley Duck Farm (Pablo ✓ supplier, overnight shipping — ~$38 for 2-pack, gold standard US duck)
Maldon flaky salt (Pablo ✓) for pre-bag seasoning
Fresh thyme sprig per breast (optional — adds subtle herbaceous to SV bath)
4 tbsp rendered duck fat — SAVED FROM THE SEAR (not added; the render produces ~60 g per magret). Use in subsequent cooks (rabo de toro browning, potatoes, eggs).

Grapefruit-Star Anise Gastrique (Premium)

100 g fine white granulated sugar (NOT raw cane — Pablo March 8 lesson)
60 ml Vinagre de Jerez Reserva (aged — Pablo ✓ pantry)
60 ml fresh-squeezed organic ruby red grapefruit juice (Florida-grown in season)
3 star anise pods (whole, more aromatic from premium source)
1/4 tsp Korean gochugaru flakes (substitutes plain chile flakes — adds slight sweet-fruity note)
1 strip grapefruit peel (vegetable peeler, pith removed — for extra aromatic during finish)

Service Enhancements

Warmed plates (important — duck loses heat fast)
Sharp slicing knife (for against-grain cuts 5-8 mm thick)
Small ramekin for gastrique service (let guests add their own)
(🔴) Pair with: sautéed wild mushrooms (morels in spring, chanterelles in fall) or roasted stone fruit (grilled peaches, roasted plums — complements the gastrique)
(🔴) Classical French service: roasted turnips + wilted spinach + pan-jus from the sear leftovers
Vinagre de Jerez Reserva on the table — few drops across the slices at service brightens the gastrique

Mise en Place

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Duck pulled from fridge 30 min before bagging (not more — Moulard fat softens quickly)
SV bath set to 57 °C and held steady for 10 min before duck goes in
Fat cap scored in 5 mm crosshatch — cut through skin and fat but NOT into meat. Knife tip should stop when it hits the red tissue layer.
Each magret salted generously on both sides (flesh and skin), pepper optional
Vacuum-sealed (or zip-top + water displacement) with optional thyme sprig
Kamado lit 30 min before SV finishes — target 260 °C direct heat, no deflector
Gastrique ingredients measured: sugar in one bowl, vinegar + grapefruit juice pre-mixed in another, star anise + chile flakes ready
Saucepan ready for gastrique (light-colored interior so you can judge caramel)
Warm plates in 80 °C oven
Sharp slicing knife on cutting board
Small ramekin for gastrique service

Method

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Score the Fat — The Critical Prep Move

Lay the duck magret skin-side-up on a cutting board. The fat cap should be a continuous white-ivory layer about 8-12 mm thick.

Take a sharp paring knife. Make shallow diagonal cuts through the skin and fat, 5 mm apart, in one direction. Cut all the way through the fat but STOP when you feel the knife tip hit the red meat tissue layer below. This is the scoring depth.

Rotate the magret 90 degrees. Make a second set of diagonal cuts perpendicular to the first — a 5 mm crosshatch pattern.

The final result should look like a diamond pattern all across the fat cap, with the meat layer untouched.

Season both sides generously with salt (Maldon flaky for 🔴). Pepper is optional and classical. If using thyme, press one sprig gently into the scored fat.

Vacuum-seal each magret individually OR use the zip-top water-displacement method: place magret in bag, submerge bag in water up to just below the zip, water pressure pushes out air, seal.

Sous Vide at 57 °C — The Interior Perfection

Preheat the sous vide bath to 57 °C / 135 °F. This is the medium-rare target for Moulard duck. Hold the bath at this temperature for at least 10 minutes before adding the duck (thermal stability).

Submerge the sealed bags in the bath. If they float, use a wire rack or clip to keep them submerged.

Start a 2-hour timer. The duck will be ready between 2:00 and 4:00 — the safe window is wide because the interior temp cannot exceed 57 °C no matter how long it cooks.

During the bath, the duck undergoes two simultaneous processes. (1) The meat fibers relax and partially denature at exactly 57 °C, producing the edge-to-edge medium-rare texture that cannot be achieved by any pan method. (2) Some of the subcutaneous fat begins to liquefy and escape through the scored channels, starting the rendering process that the kamado sear will complete.

At the 2-hour mark, the duck is done at the interior level. Do NOT sear immediately — the skin will be wet from condensation inside the bag. Pull the bags, pat everything completely dry.

If you're not ready to sear yet (timing with other courses), you can hold the SV'd duck in an ice bath for up to 4 hours before searing — no quality loss. This is the restaurant prep technique: SV in advance, sear à la minute when the order comes up.

Make the Gastrique — 10 Minutes of Concentrated Magic

Heat a heavy-bottomed saucepan (light-colored interior — stainless steel ideal; black enameled cast iron makes color judgment hard) over medium-high heat. No oil, no butter — dry pan.

Add 100 g white granulated sugar in an even layer. Do NOT stir.

Watch the sugar. After 2-3 minutes, the edges will begin to melt and turn clear. Swirl the pan GENTLY to help the liquid pool reach the dry sugar. Still do NOT stir.

The sugar will progress through color stages: white → clear liquid → pale gold → amber → dark amber. The target is DARK AMBER — the color of aged whiskey or dark honey. This takes 5-7 minutes total.

Do NOT let it go past dark amber to black — burned caramel is bitter and ruins the sauce. If you are nervous about judging, err on the side of pulling slightly earlier (amber rather than dark amber).

When the caramel hits dark amber, immediately add the pre-mixed sherry vinegar + grapefruit juice (120 ml total). CAREFUL — STAND BACK. The 170+ °C caramel flash-boils the water in the liquid, producing violent bubbling and possibly caramel seizing. This is normal and expected.

Stir with a wooden spoon or heat-resistant spatula over medium heat. The seized caramel will re-dissolve into the hot liquid over 2-3 minutes. Keep stirring.

Add the star anise pods + chile flakes (+ grapefruit peel strip for 🔴). Reduce heat to medium-low. Simmer 5-7 minutes until syrupy — the sauce should coat the back of a spoon and hold a line when you drag your finger through it.

Remove from heat. Remove the star anise pods and peel (or leave them in for a rustic presentation). The gastrique can be held warm on the stovetop for up to 30 minutes until serving.

The Kamado Sear — Fat Render and Finish

While the gastrique rests, prepare the kamado. Lump charcoal filling 1/4 of the firebox (enough for 15-20 minute direct-heat window). No heat deflector — you want direct heat for this sear. Light with electric starter or chimney starter.

Target temperature: 260 °C / 500 °F. This is searing territory — hotter than the pizza setup. Bottom vent fully open, top vent fully open. Takes about 25-30 minutes from lighting to this temp.

Pull the sous-vide duck from the bath. Snip a corner of the bag and drain the liquid. Pat the duck completely dry with paper towels — every surface, especially the skin side. Any surface moisture will prevent proper searing (water boils before Maillard can start).

BURP the kamado dome (crack 5 cm open, wait 5 seconds, then fully open) to prevent flashback.

Place the duck SKIN-SIDE-DOWN directly on the grill. Close the dome.

The kamado will FLARE UP dramatically as duck fat drips into the coals — this is normal. The flare-up is actually contributing to the skin's crispy texture via radiant heat. Do not panic. Do not open the dome to extinguish. Let it work.

8-10 minutes fat-side-down. This is the critical phase — the fat renders out through the scored channels, and the skin develops the dark-bronze crispy shell that defines proper magret.

At 8 minutes: burp the dome, open, check. The skin should be deeply bronzed with visible rendered fat pockets. If still pale: 2 more minutes. If dark enough: flip.

Flip the duck skin-up. Close the dome. 2 more minutes. This finishes the interior at the meat side and produces a light sear.

Pull the duck to a cutting board. Rest 5-8 minutes loosely tented with foil. Internal temperature should read 54-56 °C — it has risen slightly from the SV's 57 °C during the sear but not past medium-rare.

Rest is non-negotiable. Slicing immediately loses juices onto the cutting board. The 5-8 minute rest lets the juices redistribute through the meat.

Timeline

T-2:30 — Pull duck from fridge Rest at room temperature 30 min. This evens the meat temperature before bagging.
T-2:25 — Score fat cap Use sharp paring knife to crosshatch the fat cap at 5 mm intervals. Cut through skin + fat only — STOP at the red meat layer. Scoring allows fat rendering during both SV (starts the process) and kamado sear (completes it).
T-2:20 — Season + bag Salt both sides generously (Maldon for 🔴). Optional: pepper, thyme sprig. Vacuum-seal or use zip-top with water displacement (submerge bag in water to push out air, seal just above waterline).
T-2:15 — Into SV bath Drop bags into 57 °C water. Clip to side of container. Start 2-hour timer.
T-0:30 — Light kamado Fill firebox 1/4 with lump charcoal. Light with electric or chimney starter. NO heat deflector (direct heat for sear). Open vents fully — target 260 °C.
T-0:20 — Make gastrique Heavy saucepan on medium-high heat. Add 100 g sugar in even layer. Do NOT stir. Swirl pan gently as sugar melts: white → clear → pale gold → amber → DARK AMBER (whiskey color). ~5 min.
T-0:15 — Add vinegar + juice CAREFUL — the caramel will seize and bubble violently when liquid hits 170+ °C sugar. Stand back. Add the pre-mixed sherry vinegar + grapefruit juice all at once. Stir over medium heat. Caramel will re-dissolve over 2-3 min.
T-0:12 — Add aromatics Add 2-3 star anise pods + 1/4 tsp chile flakes + (🔴) 1 strip grapefruit peel. Simmer gently 5-7 min until syrupy — should coat back of spoon. Remove from heat. Remove peel + star anise (or leave if serving rustic).
T-0:10 — Pull duck from SV + DRY Pull bags. Snip corner, drain liquid. Pat duck COMPLETELY dry with paper towels — any surface moisture ruins the sear. Skin side should be bone-dry.
T-0:08 — Kamado sear skin-down Burp kamado open (flashback prevention). Place duck skin-side-DOWN directly on the grill at 260 °C. Close dome. 8-10 min. The kamado will FLARE UP as duck fat drips into coals — this is normal; do not panic. Vent air through bottom vent if excessive.
T+0:02 — Check + flip Open dome (burp). Check skin side: should be deeply bronzed, crispy, with visible rendered fat. If pale: 2 more min. If dark enough: flip skin-UP. Close dome. 2 minutes on meat side to finish.
T+0:04 — Pull + rest Remove duck to cutting board. Internal temp should read 54-56 °C (it rises slightly from SV's 57 °C during sear). Rest 5-8 min loosely tented with foil. The rest lets juices redistribute.
T+0:12 — Slice + plate Slice against the grain, 5-8 mm thick. Fan slices across warmed plate, skin side up. Drizzle warm gastrique across slices — don't drown, just streak. Small ramekin of gastrique on the side for add-to-taste.