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Peanut Butter Dog Cookies are the perfect wholesome, homemade treat for your pup. Made with just oats, banana, peanut butter, and egg, these simple dog treats come together in minutes and are loved by dogs of all shapes and sizes.
If your dog is part of the family (and mine absolutely is), you will love spoiling them with these dog cookies and my dog birthday cake. Both use pantry staples and come together with minimal effort.

Key Tips to Know Before Starting
Before you grab a bowl, here are a few small details that make these treats turn out just right for your four-legged friend.
- Always check with your veterinarian before introducing new foods, especially if your dog has allergies or health concerns.
- Choose natural peanut butter. Make sure it does not contain xylitol which is toxic to dogs. I prefer using natural peanut butter without added sugar or oils, but it is always best to read the label.
- Use ripe banana. A soft, spotty banana mashes easily into the other ingredients.
- Cool completely before storing in the fridge. Trapped steam can make the dog cookies quickly grow mold. Once cooled, store in the refrigerator where they will last up to a week.
How to Make Homemade Dog Cookies
Mix, scoop, bake! It is so easy to make these peanut butter dog cookies!
Step One: Prepare Batter
In a medium bowl, whisk the egg. Add in the banana and peanut butter and mash together until evenly incorporated. Add the oats and mix until combined. The mixture will be thick and slightly sticky, like my banana breakfast cookies.

Step Two: Scoop
Scoop 1 tablespoon batter out onto baking sheet, lined with silicone mat or parchment paper. Flatten slightly with a fork, so that they will bake evenly.

Step Three: Bake
Bake for 10-12 minutes, or until the treats are set and lightly golden on the bottom.
Let the cookies cool completely and then let your pup enjoy!

Storage Tip
Once cooled fully, store the dog cookies in an airtight container at room temperature for up to 5 days, or in the refrigerator for up to 7 days. If your kitchen runs warm, refrigeration is the safer option.
You can also freeze the treats in an airtight container for up to 3 months. Thaw at room temperature before serving.
Homemade dog treats are such a small thing, but they feel special. And when your dog looks at you like you just handed them the greatest gift on earth, it makes the 15 minutes in the kitchen completely worth it.
Peanut Butter Oatmeal Dog Treats

Ingredients
- 1 large egg
- ½ cup mashed ripe banana, ~1 large banana
- 3 tablespoons creamy, natural peanut butter
- 1 cup rolled oats
Instructions
- Preheat oven to 350℉ (175℃).
- In a large mixing bowl, whisk the egg. Add the banana and peanut butter and mix until the banana is mashed and everything is well combined. Add the oats and mix until the oats are fully moistened.
- Scoop onto a rounded tablespoon onto a cookie sheet. Flatten slightly with a fork.
- Bake for 10-12 minutes.
- Cool fully before serving to your dog.
Notes
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.













Could I add very ripe bananas that I've frozen? I have some I was going to use for banana bread.
Yes Molly, I do this all the time! Just defrost in microwave 🙂
Would like to know if dog oatmeal treats can be frozen? Thank you
Hi Joan! These can be frozen--in fact, I have some in there for my puppy 🙂 They last 3 months frozen. Just thaw before giving to the dog.
Just made these and my dog loves them...... Yay. Thank you so much will definitely be a staple in my house now.
Awe, so happy your pup enjoys Lorraine!
Our dogs absolutely live these treats! I am going to make some changes on next batch. Maybe add some fine chopped apples....but have not yet decided. There are so many choices!!
Thanks everyone for sharing your ideas!!
Becca
We have a rescue dog that has polyps associated with intermittent rectal bleeding and loose stools. This treat is not only healthy, easy to make, and tasty for dogs, it seems to very much agree with a healthy bowel regimen for him. You can make your cherished pups a healthy organic treat in less than 30 min.! On a side note: sometimes the husband may snitch a bit of one too. 🙂
I am so glad your dog enjoys Aileen!
Super easy to make. Made this on the fly, so didn't have bananas, so blended up some blackberries. But this recipe could use any fruit really. Has a strong peanut butter after taste and a bit dry from the oats, but I'm sure my dog will love them!
I added chopped (cooked) bacon. Keep in fridge. She loves them!
I am so glad your pup enjoyed Deborah! Thanks for sharing the idea of adding bacon.
If I refrigerate the dog treats will they last longer than 5 days?
Hi Kaylee. These will will freeze for 3 months, and keep in fridge for 7, maybe 8 days. I hope you pups are enjoying.
After there done can I give it to the pup directly or does it have to refrigerate? and if it does how long will it take ?
Hi There! I would let them cool for at least 10 minutes so the pup does not burn it's mouth. I hope your puppies enjoy!