Have you ever tasted English food? They eat pigs’ blood.

Have you ever tasted English food? They eat pigs’ blood.
They do not eat pigs’ blood. I’m telling you.
They put pigs’ blood in the sausages and brains of sheep.
The place is completely barbaric.
— Victoria & Abdul

Blood pudding

This quote alludes to a very well known British dish, black pudding (or blood pudding) which is usually served as part of a traditional full breakfast.