In a medium saucepan over medium-low heat, stir together the water, sugar, and salt and bring it to a boil, stirring constantly. Add the cranberries, reduce the heat to low, and simmer for 5 minutes, stirring occasionally. Remove from the heat and stir in the lemon juice. Let the mixture cool for 5 minutes.
With an immersion blender or stand blender, puree the cranberries. The puree wil