Cohesive non-free flowing sweetener compositions, e.g., sweetener cubes, useful for adding sweetness to liquid foodstuffs, for example, beverages, having a reduced caloric burden as compared to conventional sucrose cubes, are provided. More particularly, a cohesive non-free flowing sweetener composition containing a high intensity sweetener and a low-calorie bulking agent, wherein a sweetener cube formed from the cohesive non-free flowing sweetener composition has a lower caloric burden than that of a conventional sucrose cube of about the same dimensions and an equivalent sweetness. Also provided are sweetener cubes containing sucralose, polydextrose, trehalose, erythritol, tagatose, and/or lactose, wherein the sweetener cubes have a caloric burden of about 0.2, about 1, about 2, about 3, or about 4 kilocalories per cube and a sweetness equivalent to about one teaspoon of sucrose. Methods of making such cohesive non-free flowing sweetener compositions are also provided.