A few approaches you could try.
- Zest 3-4 oranges. Freeze the cranberries and then thaw them, this will break down the cell walls. Add that goop to the secondary and let it sit for 7-10 days before racking or bottling. I would use more than two ounces, I would use at least a half pound if you really want the fruit flavor in there...
- You could use Everclear or Vodka etc. to soak the orange zest and some dried cranberries for 2-3 weeks. Strain and use this extract to flavor the beer. The advantage of this method is you can create more than you think you need, and add the extract to taste, giving you more control over the flavor balance. Flavor it about 20% more than you think you need since it will fade with age.
