Overcooking can make a tender cut of meat less tender.
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Tenderness is influenced by the portion of the animal that it came from as well as the animal itself-- how it was raised and what it was...
A less tender friend isn't as kind or "sweet" as another friend. If they're your friend, like them for who they are, not if they are sweet or not. Just because you're less tender than someone else...
tough meat is best braised. You didn't mention the cut of the meat you are using. Goggle the name of the cut of meat with -"best cooking method "a such as: bottom round best cooking method , and see...
Cooking meats at lower temperatures for longer times does make them more tender. You can also try searing the outside - brown the entire outside on higher heat on top of the stove (a frying pan or...