Cranberry & marmalade sauce

Tip the cranberries into a medium pan over a low heat with the orange juice, sugar and marmalade, and stir until the sugar and marmalade melt and the mixture starts to bubble. Cook for 3-5 mins, depending on whether the cranberries are fresh or frozen, as the frozen ones will soften more quickly. They need to be tender but still hold their shape, so try to squash one to see if it is soft enough. The sauce will thicken as it cools, but this has a looser texture than shop-bought. Will keep for 1 week in the fridge.