Icebox cupcakes? This concept is new to me. Two Peas and Their Pod posted a recipe for Chocolate Mint Icebox Cupcakes (which would be perfect for St. Patrick's Day). After reading the recipe I learned that icebox cupcakes are no-bake cupcakes made of layered cookies and frosting. Um...yummy! Why have I never seen these before?! Sounds like it's kitchen testing time!