Sugar dissolved in an equal volume of water, cooked briefly or shaken cold. The standard sweetener behind a bar, because it blends into cold liquid instantly.
What it does in a recipe: Pre-dissolved sweetness that mixes evenly into cold drinks and brushes onto cake layers without grain. Pick the swap that covers that job - the ratios below are written so you can act on them without doing any arithmetic.
Standard simple syrup is equal parts sugar and water by volume, so splitting the spoonful in half rebuilds it exactly.
MethodStir until you cannot feel any grit on the bottom of the glass. Warm water dissolves it in seconds; in a cold drink, undissolved sugar will simply settle out.
Trade-offIdentical once fully dissolved. The only failure mode is not stirring long enough.
Simple syrup keeps about a month refrigerated; rich 2:1 syrup keeps longer because the higher sugar concentration inhibits spoilage. Cloudiness or any smell of ferment means it should be thrown out.
At a glance
Simple syrup in summary
Simple syrup at a glance: category, its job in a recipe, the diets it suits, the diets its substitutes can satisfy, and how many substitutes there are.
Can I use granulated sugar dissolved in warm water instead of simple syrup?
1 tbsp simple syrup = 1 1/2 tsp granulated sugar + 1 1/2 tsp warm water. Standard simple syrup is equal parts sugar and water by volume, so splitting the spoonful in half rebuilds it exactly. Identical once fully dissolved. The only failure mode is not stirring long enough.
Can I use rich simple syrup instead of simple syrup?
1 tbsp simple syrup = 1 1/2 tsp rich simple syrup (2:1 sugar to water) + 1 1/2 tsp water. Rich syrup is twice as concentrated, so halving it and topping up with water lands on the same sugar-to-liquid ratio. No detectable difference in a finished drink.
Can I use honey syrup instead of simple syrup?
1 tbsp simple syrup = 2 tsp honey syrup (equal parts honey and warm water, stirred smooth). Honey is sweeter than sucrose, so a smaller pour of the thinned syrup matches the sweetness of plain simple syrup. Adds a floral, slightly resinous flavour and a faint cloudiness, which is welcome in a whiskey sour and wrong in a clear highball. Not vegan.
Can I use agave syrup instead of simple syrup?
1 tbsp simple syrup = 2 tsp agave nectar. Agave is already liquid and sweeter than sugar syrup per spoonful, so two thirds of the volume matches it without extra dilution. Slightly thicker mouthfeel and a faint vegetal note. In a margarita that is an improvement; in a delicate gin drink it is noticeable.
Cooking around an allergy? Diet tags here describe the ingredient itself, not any particular brand. Processed products change formulation without notice and shared production lines are common, so read the label on everything you use. A severe allergy is a medical matter - confirm with the manufacturer or your clinician rather than relying on a substitution chart.