It's describing "cookies" which is a noun which makes it an adjective phrase, because adjectives describe nouns :)
<span>Albert Einstein was a German-born theoretical physicist. He developed the general theory of relativity, one of the two pillars of modern physics. Einstein's work is also known for its influence on the philosophy of science
Here is a short essay</span>
Comparing two unlike things using like or as is an example of a similie.