Also called moon pies, whoopie pies are actually two little cakes sandwiched together with a layer of frosting in the middle. They’re the ideal treat to pack up and take on the road, to a school bake sale, the office, or a party potluck. Pumpkin spice and pumpkin puree make them perfect for fall. Check out all the best of pumpkins on Chowhound.
And for more icing-filled inspiration, check out our Gingersnap Sandwich Cookies with Lemon Filling, Little Ditsy Cream Pies, and Chocolate Sandwich Cookies with Peppermint Buttercream Filling.
Make the frosting and assemble: