Spoon Roast is not an actual cut of meat, but rather a marketing term for a cut of beef sirloin, top sirloin roast or "sirloin beef bottom tips", or a cut of lamb, that with low and slow cooking comes out so tender you can "scoop the meat with a spoon." So, essentially, it is somewhat close to being higher grade of pot roast beef that doesn't require quite as much cooking time as a pot roast.
Some stores tumble Spoon Roasts for you in a marinade.
Bake in oven with some water in a covered casserole dish at 325 F (160 C), allowing 15 minutes per pound for rare, 18 minutes per pound for medium, 20 to 25 minutes per pound for well done.
The term "Spoon Roast" was possibly invented by the owner (a Mr Schneider) of the Longmeadow Community Market (closed January 2003) in Longmeadow, Massachusetts, sometime after the mid 1950s. His Spoon Roast cut was a top sirloin section, cut in half opposite to how you'd cut it for steaks.
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