Blend: Combine all ingredients in a blender and blitz until smooth, adding a splash of water as needed to get things moving.
Pour: Place silicone dog treat molds onto a flat plate or baking sheet for easier transfer to the freezer. Pour mixture into silicone molds, leaving a little room at the top for them to expand while freezing. Freeze until solid, about 4 hours.
Serve: Pop them out and serve as occasional treats for your pup!
Video
Notes
*Only use curly parsley here! Do not use Italian (flat) parsley, which can be toxic to dogs. If in doubt about which is the right one, just omit the parsley from this recipe.