Combine Orange Juice (100 milliliter) and Muscovado Sugar (100 gram) in a pot.
On a low heat, bring to a boil.
Add Frozen Cranberries (250 gram).
Simmer on a low heat for 8-10 minutes.
Once cranberries have began to burst, your sauce is ready. Remove from the heat.
Pour into a bowl and allow to cool completely. Serve and enjoy!