ingredient vs fixings

ingredient and fixings both are nouns.

Word	Noun	Adjective	Verb	Adverb
ingredient	Yes	No	No	No
fixings	Yes	No	No	No

As nouns, ingredient and fixings are synonyms defined as:

ingredient and fixings: food that is a component of a mixture in cooking

ingredient (noun)	fixings (noun)
a component of a mixture or compound	the accessories that normally accompany (something or some activity)
an abstract part of something	food that is a component of a mixture in cooking
food that is a component of a mixture in cooking