Sprinkle 1/2 cup sugar evenly over a lightly greased baking tray lined with foil and place under a hot grill. Cook until sugar is dissolved and is a dark caramel colour. Turn the grill tray as it cooks to dissolve sugar evenly. Leave until completely cold and then break into pieces. Make 1-2 days ahead. Store in an airtight container in a cool, dry place. - Margie