This Mock Tender and Chuck eye steak are commonly used names for this popular item for the crock pot. Like the Brisket, its flavor and tender texture really shine when cooked low and slow. This special cut is derived from the Chuck and is called the "Mock Tenderloin" from it's similar look to the real tenderloin. A unique part of the beef that often gets missed for what it is good for... Taste the REAL difference, 100% grass fed beef!