Oils & Fats

Duck Fat

Rendered duck fat used for ultra-crisp roast potatoes, confit, and frying.

Duck fat is the rich rendered fat from duck, a cornerstone of French cooking. It is used to confit meats, fry potatoes to exceptional crispness, and add savory depth to roasts and sautés. With a relatively high smoke point and silky mouthfeel, it imparts a distinctive savory richness.

Duck fat is rendered from the skin, fat trim, and carcasses of ducks, most prized from Moulard ducks raised in Southwest France, particularly in Gascony and Périgord where the confit industry dominates. The rendering process extracts pure fat from connective tissue and skin through slow, controlled heat — producing a cooking medium that is almost entirely flavorless on its own yet acts as a powerful savory amplifier, carrying and deepening the natural flavors of whatever it touches. At room temperature duck fat is solid and waxy, melting smoothly to a clear pale-gold liquid when heated. Its high smoke point of 375–400°F (190–204°C) makes it remarkably versatile: it performs equally well for long, gentle submersion cooking like confit and for high-heat roasting and frying, where its distinctive meaty, slightly gamey character adds a depth that no neutral oil can match. Commercially rendered duck fat from producers such as D'Artagnan is now widely available in grocery stores and specialty food shops, making home rendering optional though entirely straightforward for those who break down whole ducks.

Measured in: g
Storage: Fridge

Types & varieties

Plain rendered duck fat

Pure fat rendered from duck skin, trim, and carcasses; the standard all-purpose cooking medium

Confit duck fat

Duck legs cooked submerged in their own rendered fat; the fat takes on savory, herbed notes and can be reused for subsequent confits

Duck fat with aromatics

Commercial or homemade versions infused with thyme, bay, or black pepper; aromatics are added in the last 10–15 minutes of rendering to impart flavor without bitterness

Rendering Duck Fat at Home

Rendering duck fat is a straightforward process that rewards patience. The fat renders best from skin and fat trim collected during butchery, though whole carcasses can be used — they yield less fat per pound but work fine. A heavy pot or Dutch oven retains heat evenly, preventing the hot spots that cause scorching. Strain the finished fat through a fine-mesh strainer or layered cheesecloth while still warm to remove all solids, which would otherwise accelerate rancidity during storage. For long-term keeping, clarify the strained fat by gently heating it once more and letting any residual moisture settle before decanting.

Collect skin, fat trim, and carcasses in a zip-top bag and freeze until you have 2–3 lbs — enough to render a meaningful quantity at once
Add 1–2 tbsp water to the pot when starting; it helps draw out moisture and prevents the skin from frying rather than rendering
Render over low to medium-low heat, stirring occasionally, for 30–45 minutes until skin pieces turn golden brown and sizzling stops entirely
Strain immediately through fine-mesh strainer or cheesecloth into a heatproof container
Store in small airtight containers; freeze portions in ice cube trays for convenient single-use quantities

Storage and Shelf Life

Proper storage dramatically extends the life of duck fat. Refrigerated in an airtight container, it keeps up to 6 months; frozen, up to 1 year. For pantry storage, keep it in a cool, dark place and use within about 1 month. Discard any fat with a strong, rancid, or sour smell — oxidation compromises both flavor and safety. Never reuse fat that has cooked raw poultry unless it reached safe temperatures; strain and refrigerate promptly after each use.

Common uses

Roasting potatoes — the classic French preparation, producing an exceptionally crisp, golden crustConfit — submerged cooking of duck legs or other proteins in their own fat at low temperatureFrying — eggs, chicken, or vegetables; adds savory depth that neutral oils cannot providePan-roasting duck breast — basting with its own rendered fat during cooking for moisture and flavorBraising greens — especially hearty greens like kale, cabbage, or chicoryEnhancing root vegetables — carrots, parsnips, turnips, and beets gain remarkable richnessCroutons and fried bread — traditional preparation for soups and saladsGeneral sautéing — where its high smoke point and flavor add complexity to savory dishes

Tips & pitfalls

Render slowly over low to medium-low heat — rushing with high heat causes moisture to remain in the fat and produces a darker, less clean-flavored product
Strain rendered fat through a fine-mesh strainer or layered cheesecloth while still warm to remove all solids and extend shelf life
Store duck fat in small containers — freeze portions in ice cube trays for convenient single-use quantities
A small amount of water (1–2 tbsp) added to the pot when rendering helps draw out moisture and prevents the skin from frying rather than rendering
The fat is ready when skin pieces turn golden brown and sizzling stops — silence means moisture has fully evaporated
Never reuse duck fat that has been used to cook raw poultry if it was not fully heated to safe temperatures; strain and refrigerate promptly after each use
If fat has a strong, rancid, or sour smell, discard it — oxidation compromises both flavor and safety
For confit, the fat must cover the meat completely by at least 1 inch; any exposed parts will spoil
Add aromatics like thyme or bay leaves only in the last 10–15 minutes of rendering for infusion without bitterness

Nutrition

900kcal

Energy

3766 kJ · per 100 g

Where the calories come from

Protein 0%Carbs 0%Fat 100%

Protein

0% DV

Carbs

0% DV

Fat

99.8g

128% DV

Fiber

0% DV

Sugars

of which

Sodium

0mg

0% DV

Notable micronutrients

Vitamin D24% DV

Vitamin E18% DV

Source · USDA FoodData Central · approx. Fat, chicken

View on FDC →

In the shops

Matched grocery products

Duck Mousse
Hacendado · 100 g · Mercadona
€1.90
Duck Breast
BONPREU · kg · Bonpreu
€8.85
Duck Magret
380 g · Mercadona
€9.12
Cured Duck Ham
BONPREU · kg · Bonpreu
€3.99
Confit Duck Thigh
Hacendado · 300 g · Mercadona
€6.30
MARTIKO Duck Legs
MARTIKO · kg · Bonpreu
€17.99

Good to know

Smoke point: 375–400°F (190–204°C)
Flavor profile: Rich, savory, slightly gamey; distinctive duck essence, more nuanced than other cooking fats
Texture at room temperature: Solid, waxy; melts smoothly to a clear golden liquid when heated
Primary origin: Essential to French cuisine; strongly associated with Gascony and Périgord (Southwest France)
Yield: Approximately 2–3 oz rendered fat per pound of duck parts (skin and fat trim)
Shelf life (refrigerated): Up to 6 months in an airtight container
Shelf life (frozen): Up to 1 year
Shelf life (pantry): About 1 month in a cool, dark place; longer if refrigerated after opening
Equipment for rendering: Heavy pot or Dutch oven, fine-mesh strainer or cheesecloth, heatproof container
Rendering time: 30–45 minutes from raw parts; longer for larger quantities
Color when properly rendered: Clear, pale gold; milky indicates moisture, dark indicates scorching

Substitutes

Goose fat — The closest substitute; nearly identical smoke point and flavor profile, though slightly richer
Lard (rendered pork fat) — Neutral-flavored alternative for frying and roasting; lacks the distinctive savory depth of duck fat
Chicken fat (schmaltz) — Milder substitute; useful in similar applications but noticeably less flavorful
Beef tallow — Acceptable for high-heat frying; adds savory richness but a distinctly different, meatier flavor

Pairs with

PotatoesRoot vegetablesGreen beans and haricots vertsKale, cabbage, and chicoryThyme and bay leafGarlic and shallotsParsley FennelBread and croutons

Also called

Rendered Duck Fat