This Unexpected Liquid Makes Simple Syrup Anything But Basic - Tasting Table
Substituting apple cider vinegar for water in simple syrup adds tangy complexity, reduces needed sugar, and slightly alters viscosity and crystal formation.
Why Powdered Sugar Isn't Always An Ideal Sweetener For Warm Beverages - Tasting Table
Granulated sugar doesn't dissolve well in cold drinks, leaving a sweet puddle at the bottom. Using powdered sugar can add graininess due to cornstarch.