Yes, if the annuals are just the magaines bound together in the same way that the Cook's Illustrated annuals are then we can "chunk" the recipes into each separate magazine. You would just need to let us know the start and end recipe for each month's issue so we could do the chunking. However, if they mix the recipes up into chapters by recipe types e.g. a chapter on main courses could contain different recipes from every month (which is what Cooking Light does in their annuals) then we couldn't produce magazine indexes from the annual index.
We could certainly go the other way though. If you index all 12 of the year's magazine issues then we can combine them for the annual book. Just let us know when you have time to get started, Happy Holidays to you too and thank you for your support.