Cuban Lechón Asado

Method

1. Make the mojo by combining the sour orange juice, garlic, oregano, cumin, olive oil, lime juice, and salt. Sour orange (naranja agria) is the defining ingredient of Cuban mojo — its sharp, bitter-sour acidity is what cuts the rich pork. If you can't find it, the substitution note below gets you close.

2. Marinate deeply by stabbing the pork all over with a knife and pouring the mojo over it, working it into the slits. Marinate at least 8 hours, ideally 24. The acid and garlic penetrate the thick shoulder, seasoning it to the bone — a quick marinade only flavors the surface.

3. Bring to room temperature for 45 minutes before roasting. Roasting cold meat leads to uneven cooking, with an overdone exterior before the center comes up to temperature.

4. Roast low and slow at 300°F, fat-side up, in a covered roasting pan with the sliced onions and marinade. Low heat over several hours renders the fat and breaks down the shoulder's connective tissue into gelatin. Roast about 3 to 3.5 hours until fork-tender.

5. Crisp the exterior by uncovering, raising the heat to 425°F, and roasting 20-30 more minutes until the top is browned and crackling. This two-stage approach — gentle then hot — gives you both tender interior and crisp exterior.

6. Rest and shred for 20 minutes before pulling the pork into chunks. Spoon the pan juices and softened onions over the top. Serve with black beans, rice, and fried plantains for a classic Cuban plate.

Equipment

• Roasting pan Recommended: Cuisinart 16-Inch Roasting Pan with Rack
• Instant-read thermometer Recommended: ThermoWorks ThermoPop 2
• Tongs Also good: Wok Spatula

Chef Notes

• The most important thing: marinate 24 hours in mojo. The sour orange and garlic need time to work through a shoulder this size.
• Sour orange is essential to authentic mojo. The lime-orange-grapefruit blend below is the best fake.
• Roast covered and low first for tenderness, then uncovered and hot for crackling.
• Pull the pork at 195°F internal for shreddable, fall-apart texture.
• Save every drop of pan juice — spooned over the shredded pork, it's the best part.

Common Substitutions

Ingredient	Substitution	Notes
Sour orange juice	2 parts orange + 1 part lime + 1 part grapefruit	The standard mojo substitute; matches the tart profile
Pork shoulder	Pork butt	Same cut, different name; both ideal for slow roasting
Fresh garlic	Garlic paste	Fresh is far better here — garlic is a headline flavor
Roasting pan	Dutch oven	Works well; keep it covered for the low-and-slow stage

What You're Practicing

Lechón asado is a citrus-marinade and slow-roast masterclass. You're learning how acid tenderizes and flavors large cuts over time, and how a two-stage roast (low to render, hot to crisp) delivers the best of both textures. This applies to any large roast — porchetta, pernil, or a holiday ham. See Brines, Cures & Marinades.

You're also practicing temperature-driven roasting, reading doneness by internal temp rather than time. Explore heat management at Techniques.