Tri tip is a triangular cut of beef cut from the bottom of the sirloin. Rich and meaty in flavour, with a thick fat cap, tri tip cooks like a tender steak but slices like a brisket.
Shin on the bone beef. For the best casserole, soup, or stew you need meat with plenty of muscle containing collagen - thats the tough stuff that turns to meltingly soft gelatin when cooked long and slow, giving the meat a moist and tender texture. A bit of extra fat in the cut also helps with keeping the meat soft and moist, and the excess can be removed from the top of the liquid after cooking.