The idiom "knock it out of the park" means to do something exceptionally well or to perform a task very successfully. Therefore, "out of" is the correct preposition.

১. This expression originates from baseball, where a great hit sends the ball out of the stadium.
২. Using "outside" or "inside" would not fit the idiomatic structure of the phrase.
৩. "Culinary art" here refers to her cooking skills which were outstanding.

অতিরিক্ত তথ্য: Idioms and phrases are essential for high-level English proficiency in competitive exams.