Dessert following recipe produces beams (7)
I believe the answer is:
rafters
'beams' is the definition.
(rafter is a kind of beam)
'dessert following recipe produces' is the wordplay.
'dessert' becomes 'afters' (I've seen this before).
'following' is a charade indicator (letters next to each other).
'recipe produces' becomes 'r' (I am not sure about this - if you are sure you should believe this answer much more).
'afters' after 'r' is 'RAFTERS'.
Can you help me to learn more?
(Other definitions for rafters that I've seen before include "Internal roof beams" , "Roof supports" .)