i get:
'The geographical indications included in generic and customary names can refer to:
- A method of production, a recipe, or a culinary characteristic...'
As I read it, there are some other highly salient points in this paragraph of the guidance (my emphasis in bold) that I believe should be considered as a whole in conjunction with the extract you've quoted:
...rather than informing the consumer of the geographical origin of the food, it (the name) indicates that the food has been produced according to a specific recipe or method of production, or using certain ingredients/flavours, thus allowing the consumer to identify a certain product and/or underline a certain quality/taste of the product. In some cases, the recipes and methods of production have been codified by private or public bodies and organisations, in other cases, they have not been codified as such but they are well known and understood by consumers.
I also think this should be read in the context of the intent of Regulation (EU) 1169/2011, i.e. providing information so that consumers can make informed choices about the products they buy.
There might be a (possibly tenuous - I'd certainly check with my local TSO before using it!) argument if you are producing this for solely for a specialist market such as distribution only to Polski skleps that the "average" consumer there will understand that it is a style of product, although the same argument somewhat falls down when considering the Greek Yoghurt example discussed above.
Otherwise for more general distribution, I'm still doubtful that the average British consumer is going to understand that this is a style of baked good, rather than erroneously infer that it is one that originates from Russia.