The phrase is an example of a simile, due to the applause being compared to something else, and using the word 'like' in its' comparison. Hope this helped!
"The audience's applause sounded like an ocean wave," is an example of a simile (A).
Both metaphors and similes make comparisons. The difference between them is small. Similies make comparisons by using like or such as, while metaphors simply state a comparison. Because the example uses like ("The audience's applause sounded <u>like</u> an ocean wave.") it is a simile.
The metaphorical title suggests that Williams has a vast mix of ethnicities in his composition. She uses food to show how she can try different things and like them all, exploring them in the most beneficial way possible.