In a medium pot, add in the cranberries, sugar, pineapple juice, orange juice, and orange zest.
Cook on a medium flame until the cranberries begin to soften and burst, lower the flame to a simmer and cook until thickened, then remove from heat.
Notes
Keep the flame consistently on a medium heat until the cranberries burst and then bring the flame to a simmer.If you want to expedite the process, you can cover the pot in order to help steam the cranberries to get soft and burst quicker. Be sure to keep the flame steady!Use the back of the wooden spoon to burst the remaining cranberries that have not yet already burst open in order to get the sauce to thicken up more.