I made quince cheese earlier in the year. It is now maturing in the cupboard. It may not be allowed on the diet as I made it using sugar collected in cafes and not sourced locally. But by next autumn I hope we will have a sugar supply, so I will want to come back for the recipe.
Here is a recipe for Quince Cheese
Quince cheese is nicest if you leave for about three months in the cellar before eating. So it will be ready in time for Christmas.
I think Waitrose have a good recipe and there are several in our old recipe books too.