The noun phrase in the sentence above is the first option - the gooey, chocolate fudge brownies.
You have to write the whole thing and not separate these words because they are intricately connected into one noun phrase, so you cannot say just fudge brownies because that's not the whole phrase.
Tasted perfect is a verb phrase, and topped with icecream is an adjective phrase.
Grass is to mow as tree is to trim
