There are so many Canadian boutique businesses, products, craft beer, cheese producers, estate and family wineries, it would be hard to list all of our favorites.There is, however, one favorite drink, invented in Calgary that shows up on our annual summer visits with friends. The Caesar. Invented at what is now the Westin in downtown Calgary, by Walter Chell.Whether you like virgin Caesars, or ones with vodka, everyone has their very own special way of making it and what garnishes the glass.