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A step‑by‑step guide to cooking a perfectly medium‑rare tri‑tip using a low‑and‑slow oven method, a probe thermometer, and a quick cast‑iron sear. Finished with a bright garlic‑green onion‑parsley oil and served alongside reheated mashed potatoes.
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Everything you need to know about this recipe
Tri‑tip became popular in Central California during the 1970s, especially at Santa Maria-style barbecues, where it is seasoned simply and grilled over red oak. It represents the region’s love for affordable, flavorful cuts and outdoor cooking traditions.
In Santa Maria, tri‑tip is seasoned with salt, pepper, and garlic salt and grilled over red oak. In other parts of the U.S., it may be marinated in soy‑based sauces or smoked low and slow, showing the cut’s versatility across American barbecue styles.
It is usually sliced against the grain and served hot with grilled salsa, beans, and fresh bread or tortillas. The meat is often accompanied by a simple herb‑oil drizzle, much like the garlic‑green onion sauce in this recipe.
Tri‑tip is a staple at family gatherings, picnics, and community barbecues, especially during summer holidays like the Fourth of July. Its size makes it perfect for feeding a crowd while keeping preparation relatively simple.
Authentic ingredients include a well‑trimmed beef tri‑tip, kosher salt, black pepper, and a light coating of oil. Substitutes can be top sirloin roast or flat‑iron steak, and avocado oil can be swapped for olive oil without losing flavor.
Classic pairings are grilled corn on the cob, Santa Maria-style beans, fresh pico de gallo, and a simple green salad. A side of creamy mashed potatoes, as used in this recipe, also complements the rich beef.
Common errors include over‑seasoning the fat layer, inserting the probe at an angle that pierces through the meat, and searing for too long which can overcook the interior. Follow the horizontal probe placement and limit the sear to 2‑minute intervals.
Tri‑tip’s triangular shape makes internal temperature uneven; a probe gives an exact reading at the thickest point, ensuring the entire roast reaches the desired medium‑rare without overcooking thinner sections.
Yes. Trim, season, and refrigerate the roast up to 24 hours before cooking. After cooking, slice and store the meat in an airtight container in the refrigerator for up to 3 days, reheating gently before serving.
SAM THE COOKING GUY focuses on approachable, technique‑driven home cooking videos that blend humor with clear, step‑by‑step instructions, often highlighting meat preparation and kitchen gadget reviews.
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