Oh good shout, am driving from Newent to Westonbirt Arboretum for the Christmas lights now tomorrow. Will try and break the journey at Gloucester services as they always have great noms.
I went to Glos services. They had the Hobbs House mincers which were pretty awesome. Going there is always dangerous, somehow even a small shopping basket makes me feel like I need a mortgage to pay for it.
Waitrose no.1 - excellent ratio of filling to pastry, satisfyingly crumbly case, good boozy flavour
If anyone is ever Bristol-ways, Gloucester services do an absolutely cracking mincer too. Massive but £££