A chef and beef expert weighs in. Is there anything more delicious than a full-flavored, juicy hamburger hot off the grill? I don't think so. I'm firing up my grill all summer long to enjoy as ...

No mystery meat here! Order a burger from any one of these fast-food giants and you're sure to find pure beef burger patties.

Tip into a heatproof bowl and leave to cool for five minutes. Add the beef, thyme and lots of ground black pepper. Mix well and form into two balls. Flatten into burger shapes, each around 2cm ...