Line a baking sheet with parchment paper and set aside.

In a medium mixing bowl, combine the peanut butter and coconut oil, stirring until smooth and fully blended.

Add the honey and mix well, scraping the sides and bottom of the bowl so everything is evenly combined.

Stir in the vanilla bean paste and cinnamon if using, mixing until evenly distributed.

Gradually add the rolled oats, stirring until the mixture becomes thick, sticky, and easy to shape.

Lightly moisten your hands with cool water. Scoop about 1 tablespoon of the mixture and roll it between your palms to form a compact ball.

Place each ball on the prepared baking sheet, leaving about 1 inch of space between them so they do not stick together.

Freeze the tray for 1 hour, or until the balls are firm.

Transfer the frozen peanut butter balls to an airtight container and store in the freezer for up to 3 months or in the refrigerator for up to 1 week.

Serve 1 ball as an occasional treat or training reward, and always supervise your dog while enjoying frozen treats.