01 - In a medium saucepan, combine the cranberries, granulated sugar, and water.
02 - Set the saucepan over medium-high heat and bring to a boil, stirring occasionally until the sugar fully dissolves.
03 - Reduce the heat to low and simmer for 15 to 20 minutes, allowing the cranberries to burst and the mixture to thicken into a syrupy consistency.
04 - Remove the saucepan from heat and stir in the freshly squeezed lemon juice.
05 - Pour the mixture through a fine-mesh sieve into a heatproof bowl, pressing down on the solids with a spoon to extract as much liquid as possible. Discard the solids.
06 - Allow the syrup to cool to room temperature, then transfer to a clean glass bottle or jar. Refrigerate and use within 2 weeks.