I picked this up in France; they made another version of it with green walnuts, but I can't remember any quantities - although they are a bit according to taste, anyway!
Here goes:
2 marmelade oranges - washed and sliced
100-200g raw sugar (or more if you like it sweet)
1 bottle of brandy
2 bottles of red wine
Leave for a few weeks, then drink like sherry. Or bottle first, if you don't want to drink it all at once...

Ina