sugar substitute equal to ½ cup sugar <ref>also found that substitute to equal ½ cup sugar was not quite sweet enough for me - so adjust to your own taste.</ref>

Sugar substitutes are non-nutritive or reduced-calorie sweetening agents designed to replicate the sweetness of sucrose without providing equivalent energy content. Common examples include aspartame, sucralose, stevia, sugar alcohols (erythritol, xylitol), and saccharin. These compounds vary widely in their chemical composition, sweetness potency, heat stability, and metabolic processing. Sugar substitutes are derived from diverse sources: some are synthesized chemically, while others are extracted from plants (stevia from Stevia rebaudiana) or derived through fermentation processes. The flavor profile varies by type—some exhibit slight bitter or metallic aftertastes, while others approximate sucrose more closely.

Sugar substitutes are employed in baking, beverages, confections, and prepared foods where reduced caloric intake is desired or required. They function differently than sugar in recipes, as sugar serves multiple roles beyond sweetness: it provides structure, browning, moisture retention, and bulk. Substitutes may require recipe adjustments and often perform inconsistently at high temperatures or in applications requiring caramelization or precise crystallization. Usage varies by type—stevia and erythritol work well in cold beverages and no-bake applications, while sucralose and aspartame are better suited to processed foods. Bakers often blend multiple sweeteners to mask off-flavors and achieve results more closely approximating traditional sugar-sweetened products.