Which dessert is priced at $12 and includes granny smith apples as a primary ingredient?

The dessert priced at $12 that features Granny Smith apples as a primary ingredient is Apple Crisp. This dessert typically highlights the tart flavor and firm texture of Granny Smith apples, which are known for holding up well during baking. The combination of these apples with a crunchy topping made from oats, butter, and brown sugar creates a classic dessert often served warm, sometimes with ice cream. It is designed to showcase the flavor of the apples, making it the perfect choice when Granny Smith apples are referenced specifically.

In contrast, the other options either do not primarily feature apples or do not utilize Granny Smith apples. Lemon Chiffon Pie is centered around lemon flavor, Pumpkin Cheesecake features pumpkin, and a Rootbeer Float is a beverage dessert combining root beer with ice cream, none of which align with the focus on Granny Smith apples.