In a small saucepan, combine the rhubarb, honey, cinnamon, nutmeg, and salt. Cook over medium-low heat, stirring occasionally, until the rhubarb is soft and the mixture is thickened, about 10 minutes.
Add the cranberries, stir to combine, and cook for an additional 2 minutes.
In a small bowl, whisk together the water and cornstarch. Add to the rhubarb mixture, stirring to combine. Continue to cook for an additional 3 minutes, stirring occasionally, until the mixture is thickened and bubbling.
Remove from the heat and let cool for 10 minutes.
Scoop the mixture into 8 small circles on a parchment-lined baking sheet. Roll each circle up tightly and place seam-side down on the baking sheet. Refrigerate for at least 1 hour before serving.
Interesting Facts
Rhubarb is a vegetable, but it is typically cooked and eaten as a fruit.
Rhubarb is a great source of vitamin C, potassium, and dietary fiber.
Cranberries are an excellent source of vitamin C and dietary fiber.