Name: Posta de Carne: Bolívar Oven-Roasted Beef
Prep time: 30 min
Cook time: 55 min
Total time: 1 h 40 min
Cuisine: Colombian
Ingredients: 1500 g whole beef punta de anca (rump cap or tri-tip), excess surface membrane trimmed; 300 g yellow onions, peeled and finely chopped; 18 g garlic (about 6 cloves), finely chopped; 28 g unsalted butter; 60 ml neutral oil, divided; 120 ml water; 10 g fine salt; 2 g ground black pepper; 8 g flat-leaf parsley, finely chopped

Wide platter of browned Colombian roast beef slices with onion pan juices and parsley.

Region Bolívar, in Colombia’s Caribbean region

Dish type Whole beef rump-cap roast with onion-butter pan sauce

Yield 8 servings

Prep time 30 minutes active

Cook time About 55 minutes; verify with a thermometer

Ingredients ↓

Overview

Posta de Carne: Bolívar Oven-Roasted Beef

Posta de carne is the name used for this Bolívar beef preparation in Colombia’s national traditional-food inventory. Its short description points to punta de anca roasted with onion, butter and garlic. A government Colombian cookbook expands that idea into a clear home-kitchen sequence: season the beef with garlic, brown it, set it in a deep pan with onion softened in butter and a little water, then roast it and serve it with its own juices and parsley.

The cut is called punta de cadera or punta gorda in the cookbook. The book’s glossary groups these names with punta de anca. Ask a butcher for a whole rump-cap or tri-tip style roast, and explain that you need a single piece suitable for oven roasting. The exact cut shape varies between countries, so choose a compact roast of about 1.5 kg with an even thickness. Leave a thin cap of fat if present; trim only tough membrane and very thick excess fat.

The printed recipe gives a 350-degree oven setting and 25 minutes for a medium result, but does not identify the temperature scale. This practical version treats that setting as 350°F (177°C), the plausible household oven temperature. It also replaces a fixed 25-minute target with a thermometer check: a roast this size can take longer depending on thickness, starting temperature and oven accuracy. The named dish is distinct from Cartagena’s separate posta negra, which has a dark, sweetened sauce and a different identity.

The resulting roast is straightforward: a deeply browned exterior, tender slices, and a savory pan sauce built from onion, butter, garlic and the beef’s juices. The onion should soften and lightly color, not burn. The sauce is intentionally simple so the flavor of the beef remains central. A little parsley adds freshness at the table, while rice, potatoes or a crisp salad can be served separately if desired; they are not part of this recipe’s ingredient list.

Ingredients

Beef and onion pan sauce

1500 g whole beef punta de anca (rump cap or tri-tip), excess surface membrane trimmed
300 g yellow onions, peeled and finely chopped
18 g garlic (about 6 cloves), finely chopped
28 g unsalted butter
60 ml neutral oil, divided
120 ml water
10 g fine salt
2 g ground black pepper
8 g flat-leaf parsley, finely chopped

Method

Prepare the beef and oven. Take the beef from the refrigerator while you prepare the aromatics; do not leave it at room temperature for an extended period. Heat the oven to 177°C (350°F), with a rack in the center. Pat the roast dry with paper towels. If it is very uneven, ask a butcher to tie it into a compact shape; an even roast cooks more predictably. Keep the raw meat and its board separate from ready-to-eat foods.
Fry and crush the garlic. Heat 15 ml of the oil in the ovenproof pan over medium heat. Add the garlic and stir for 30–60 seconds, just until fragrant and barely golden. Transfer it to a small plate before it browns deeply; burnt garlic will make the sauce bitter. Crush it to a coarse paste with the side of a knife. Mix it with the salt and pepper. Rub this seasoning over the roast, pressing it into a few shallow slits no deeper than about 1 cm rather than making many deep holes.
Brown the roast. Add the remaining 45 ml oil to the pan and raise the heat to medium-high. When the oil shimmers, place the beef in the pan. Brown each broad side and the ends, turning with tongs; allow several minutes per side and avoid moving the meat before a crust forms. The goal is an even deep-brown surface, not a cooked center. If the pan begins to smoke heavily, lower the heat. Transfer the beef to a clean plate while you prepare the onion base.
Build the pan and roast. Lower the heat to medium. Add the butter and about two-thirds of the chopped onion to the same pan. Stir for 3–4 minutes, scraping up browned bits, until the onion softens and smells sweet. Pour in the water and stir. Return the roast to the pan, fat side up if it has a fat cap, and spoon some onion over the top. Carefully move the pan to the oven. Roast until a food thermometer inserted midway into the thickest section reads at least 62.8°C. Begin checking at about 45 minutes; a thick roast may take longer. Avoid touching a fat seam or the pan with the probe. Do not use color or the printed time alone to decide whether the beef is safe.
Rest and finish the sauce. Transfer the roast to a clean board and rest it for 15 minutes; this exceeds the minimum three-minute safety rest for a whole beef roast and gives the juices time to settle. While it rests, set the pan over low heat. Stir the remaining onion into the juices and cook until soft, adding a spoonful of hot water if the pan looks dry. Taste the sauce and adjust only if needed; the measured salt is already included. Spoon the onions and juices over the rested roast, then scatter the parsley on top.
Carve and serve. Find the direction of the muscle fibers and slice across them into even pieces, about 5–7 mm thick. Arrange the slices on a warm platter and pour over some of the onion-butter sauce. Bring the remaining sauce to the table. Serve promptly while the beef is warm.

Practical guidance

Practical

Equipment

Use a heavy ovenproof skillet or shallow roasting pan large enough to hold the roast without crowding, plus a small plate for the cooked garlic, tongs, a cutting board, a sharp carving knife and a food thermometer. Check that the pan handle is oven-safe. A thermometer with a thin probe makes it easier to measure the center without cutting into the roast.

Practical guidance

If the roast is much longer or thinner than a typical tri-tip, start checking its temperature earlier. If it is compact and thick, expect it to need additional oven time. The thermometer, not the clock, determines when it is safe. If the garlic starts to darken in the oil, remove the pan from the heat and lift it out immediately. Pale-golden garlic tastes sweet and aromatic; dark brown garlic becomes bitter. If the pan juices reduce too far, add water a tablespoon at a time and scrape the browned bits loose. If the sauce is watery, simmer it gently while the roast rests; avoid boiling it hard, which can make the butter separate. Let the roast rest before slicing. Cutting immediately allows more juice to run onto the board and can leave the slices drier. Refrigerate beef and sauce in shallow containers within 2 hours. Use refrigerated leftovers within 3–4 days or freeze them. Reheat leftovers to 73.9°C, adding a little water to the sauce if needed. The nutrition figures are estimates for one-eighth of the roast and sauce. The cut’s fat cap, trimming, cooking loss and portion of sauce served all affect the values.

Allergens and food safety

Butter contains milk. For the beef, insert a clean food thermometer midway into the thickest section, avoiding large seams of fat. Reach at least 62.8°C and allow the roast to rest for at least 3 minutes before carving; the 15-minute rest in this recipe exceeds that minimum. Do not judge safety from pinkness, browning or elapsed time. Wash hands, the board, knife and surfaces after contact with raw beef. Refrigerate leftovers within 2 hours and reheat them to 73.9°C.

Final notes

1: Punta de anca, punta de cadera and punta gorda refer to closely related beef-cut names in the Colombian cookbook; explain the whole-roast shape to your butcher. 2: This Bolívar preparation uses a restrained onion, butter and garlic pan sauce, separate from the darker sauce associated with Cartagena’s posta negra.

Nutrition per serving

Serving basis: One of eight portions of roast beef with onion-butter pan sauce
Calories: 440 kcal
Carbohydrates: 5 g
Protein: 37 g
Fat: 31 g
Fibre: 1 g
Sodium: 520 mg

Posta de Carne: Bolívar Oven-Roasted Beef

Ingredients

Beef and onion pan sauce

Method

Practical

Equipment

Practical guidance

Allergens and food safety

Final notes

Nutrition per serving

Colombian National Dishes

Picadillo de Cerdo with Noodles, Yuca and Green Plantain

Sancocho Paisa: Antioquia Beef and Pork Stew

Popayán Peanut Sancocho with Pork, Guineo and Cassava