Heat peanut butter in microwaveable bowl for 30 seconds or until it starts to melt.
Add the remaining ingredients to the bowl and stir until well-combined.
Transfer dough to a greased mug or corning ware dish.
Heat in microwave for 90 seconds.
Frost while still warm.
For the Frosting
Combine ingredients and spread on mug cake.
Sprinkle dry dog food on top of frosting (optional).
Notes
Watch the Texture: When microwaving the mug cake, keep an eye on its texture. Overcooking can make it dry and tough, while undercooking may result in a gooey consistency. Adjust the microwave time according to your microwave's power to achieve a moist and fluffy pupcake.
Mind the Ingredients: Ensure the peanut butter used is dog-friendly, without any added sugar or xylitol, which can be harmful to dogs. Also, opt for whole wheat flour instead of refined flour for a healthier treat. Additionally, if your dog has any food allergies, consider suitable substitutions for ingredients like wheat flour.
Customize with Caution: While adding dry dog food as a topping can add a fun crunch for your pup, be mindful of the size and hardness of the kibble. Choose smaller pieces that won't pose a choking hazard, and avoid hard treats that could potentially damage your dog's teeth. Always supervise your dog while enjoying this treat to ensure they're eating safely.