A social trip by public transport to a fine brewery tap with some excellent beers.
Then on to Keighley Railway Station to the excellent bar above the platforms, the Old Parcels Office.
A good choice of food is available here as well as a choice of good beers.
Of course, there are a number of other good pubs within walking distance from here.
The brewery tap is very close to Crossflatts station with trains from Leeds roughly every half hour,
e.g. 11:26 from Leeds arrives 11:47, (11:56 arrives 12:17). From Dewsbury, the 10:57 arrives Leeds 11:10.
You need to buy a return to Keighley as Crossflatts is the station before Keighley.