01 - In a medium saucepan, whisk together granulated sugar, cocoa powder, and salt until evenly blended.
02 - Gradually add water to the dry mix, whisking continuously until the mixture is smooth and free of lumps.
03 - Place the saucepan over medium heat and bring the mixture to a gentle simmer while stirring constantly.
04 - Allow the syrup to simmer for 2 to 3 minutes, stirring continuously until it slightly thickens.
05 - Remove the saucepan from heat and stir in the pure vanilla extract thoroughly.
06 - Let the syrup cool for 10 to 15 minutes before transferring it to a clean, heatproof jar or bottle. Refrigerate after cooling.