cook up vs fabricate

cook up and fabricate both are verbs.

Word	Noun	Adjective	Verb	Adverb
cook up	No	No	Yes	No
fabricate	No	No	Yes	No

As verbs, cook up and fabricate are synonyms defined as:

Other synonyms of cook up include invent, make up, manufacture.

cook up (verb)	fabricate (verb)
concoct something artificial or untrue	concoct something artificial or untrue
prepare or cook by mixing ingredients	put together out of artificial or natural components or parts