Marinated Tri-Tip Roast in Caramelized Onion Sauce Sun, 01/29/2012 - 08:38 — Steffen Tri-tip is one of my favorite cuts of beef. Marinated and roasted, it has a wonderful texture and flavor. For this recipe, I'm using a "cooked" marinade with caramelized onion, dark soy sauce and port wine. Read more about Marinated Tri-Tip Roast in Caramelized Onion Sauce Tri-Tip Roast Meat Beef