Some people eat golden syrup with cold Yorkshire Pudding if there is some left over.
Years ago when budgets were tighter large families would make more Yorkshire Pudding than required and then eat it with jam or syrup at tea time as a treat.
Nowadays though Yorkshire tends to be eaten with a hot meal with gravy and many people would not even have heard of the jam or syrup with cold Yorkshire.
The Yorkshire pudding that you cooked looks like a large yeast roll or biscuit (not a "cookie" type, but a breakfast type biscuit that we eat here...like these that I made for Thanksgiving morning....
We eat those with syrup (I like maple syrup), gravy, fruit jellies or honey.