Chocolate Mint Fro-Yo Cupcakes

Generously coat a 12-cup muffin tin with cooking spray.

Place cookies in a food processor and process until fine crumbs form. Transfer to a medium bowl and stir in melted butter. Press about 1 tablespoon of the mixture in the bottom of each muffin cup.

Combine frozen yogurt and peppermint extract in a medium bowl, stirring until well combined. Fill each muffin cup with a generous 1/4 cup of the mixture. Press a mint leaf on top, if desired. Freeze until firm, at least 3 hours.