What is the appositive phrase in this sentence? Cookies With Chocolate Chunks," the winning recipe, received $100 .
"the winning recipe"
An appositive is a noun or phrase that renames the noun that preceded it.
In this case, the first noun or noun phrase is "Cookies with Chocolate Chunks" - in other words the name of the recipe.
The appositive is the next noun or noun phrase that acts to rename the first noun - in this case it's "the winning recipe".