Giffard Cherry Brandy is made with griotte cherries and left to macerate in brandy for 3 months prior to bottling. It is bottled at a slightly lower proof than the 80 that comes in classic brandy.
Giffard is a French company specializing in a wide variety of liqueurs and eua-de-vie among other products. Some of those extra products are flavored cocktail syrups (or "sirop"). They are generally sweetened with pure cane sugar.