i bought some stewing steak and when i used it it was quite chewy/tough. im cooking the rest of it today. how should i cook it so it becomes more tender. i have a while to do it so time/slow heat not a problem. i only have oven or hob.
It sounds like you haven't cooked it for long enough. You can try it in a casserole or oven proof cooking pot at gas mark 4 (180 deg) for three hours or on a hob on a low heat for the same time.
Get yourself a slow cooker and do the meat in that for about 8 - 12 hours. Put it in raw in either in stock or gravy or (Very) quickly fry it first in a hot pan to brown.
Perfect every time, even with very cheap cuts of meat.