Fred Berkmiller, Chef Patron of Edinburgh restaurants L’Escargot Blanc and L’Escargot Bleu, is up for a double success at this year’s Catering Scotland Excellence (CIS) Awards. With Berkmiller himself shortlisted for the Chef of the Year title for a second time, his L’Escargot Blanc (The White Snail) establishment in the capital’s Queensferry Street is one…