The recipe hasn’t changed at all

The recipe involves boiling granulated sugar, liquid sugar, and corn syrup together before adding gelatin and vanilla extract. New technology now means that some Peeps get filled with a ribbon of chocolate or caramel (these are called “Peeps Filled Delights”), while others end up partially dipped in different flavors of chocolate. In spite of these new additions, the Peep within remains the same classic marshmallow.