Keep it simple for a grilled taste treat By Cathy Branciaroli, Food Correspondent, The Times  Show Dad some love on Father’s Day with grilled burgers.  They don’t need to be beef by the way, but with a few easy tips and techniques, anyone can grill perfect burgers in honor of Dad’s big day. If you decide to make beef burgers, the key to making great steakhouse-style burgers at home is...