Place coconut oil in a medium saucepan over medium heat and stir until liquified.
Add in peanut butter, cinnamon, and pumpkin while stirring continuously.
Continue to stir until mixture is completely combined and is the consistency of a thick soup.
Remove from heat and pour into silicone ice cube mold trays and refrigerate or freeze until they are set. (2-4 hours) It may be easier to have your silicon tray on a cookie sheet to make moving into the freezer easier.
Pop the molded treats out of the tray and treat your doggy!
Store treats in an airtight container in the refrigerator or freezer for up to 2 weeks.