Sous Vide Duck Breast with Blackberry Gastrique

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Tender duck breast cooked sous vide to perfection, served with a tangy blackberry gastrique that balances richness with bright fruitiness. This french-inspired quick meals ready in about 130 minutes pairs (6 oz each) duck breasts, salt, black pepper for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 480 calories and feeds 2, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 20 min Cook: 110 min Serves 2 French cuisine 480 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat sous vide water bath to 135°F for medium-rare duck breast. Season 2 duck breasts evenly with 1 tsp salt and 1/2 tsp black pepper, then vacuum seal individually with 1 thyme sprig each.
  2. Step 2: Submerge the sealed duck breasts in the water bath and cook for 1 hour and 30 minutes.
  3. Step 3: Meanwhile, combine 1 cup fresh blackberries, 1/4 cup red wine vinegar, and 2 tbsp brown sugar in a small saucepan over medium heat. Simmer gently, stirring occasionally, until the blackberries break down and the sauce thickens to a syrupy consistency, about 10 minutes.
  4. Step 4: Remove the gastrique from heat and whisk in 1 tbsp butter until glossy and smooth, then keep warm.
  5. Step 5: After sous vide cooking, remove duck breasts from bags and pat dry thoroughly with paper towels.
  6. Step 6: Heat 1 tbsp olive oil in a skillet over medium-high heat. Place duck breasts skin-side down and sear for 2-3 minutes until the skin crisps and turns golden brown. Flip and sear the other side for 30 seconds.
  7. Step 7: Let the duck rest for 5 minutes, then slice thinly and serve drizzled with the warm blackberry gastrique.

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Frequently asked questions

How long does Sous Vide Duck Breast with Blackberry Gastrique take to make?

Total time is about 130 minutes (20 min prep + 110 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.

How do I store leftover Sous Vide Duck Breast with Blackberry Gastrique?

Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep (6 oz each) duck breasts from drying out.

Can I substitute ingredients in Sous Vide Duck Breast with Blackberry Gastrique?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Sous Vide Duck Breast with Blackberry Gastrique for a different number of people?

The recipe is written for 2 servings. Multiply each ingredient by (your serving target / 2). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Sous Vide Duck Breast with Blackberry Gastrique?

French quick meals like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.

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