In a large heavy sauce pan on low heat, combine Dove Promises and sweetened condensed milk. Heat over low heat, stirring until smooth. Make sure to continue stirring and do not leave unattended as chocolate melts fairly quickly. Remove from heat once chocolate is melted.

Stir in chopped graham cracker pieces and marshmallows.

Pour into a 8" pan that has been lined with foil.

Chill in fridge for at least 2-3 hours. Cut and serve. Store left over fudge in fridge.