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Peanut Butter Dog Cookies are an easy homemade dog treat made with just four simple ingredients. Unlike traditional dog biscuits, there is no flour to measure or dough to roll and cut. Simply mix, scoop, flatten, and bake for soft, slightly chewy dog cookies in about 15 minutes
I originally started making these simple peanut butter dog treats for our Boston Terrier, Bailey, and my kids quickly dubbed them dog cookies. They remain one of the easiest ways to make a homemade dog treat, especially when you already have a ripe banana sitting on the counter.

Peanut Butter Dog Cookies at a Glance
- Yield: 12 soft dog treats
- Time Needed: Ready in 15 minutes
- Just 4 Ingredients: Rolled oats, banana, egg, and peanut butter
- Easy to Make: No flour, rolling, or cookie cutters required
Kristen's Key Tips for Dog Cookies

Making these homemade dog treats is incredibly easy, but there are a few important things to keep in mind.
- Check the peanut butter label. Never use peanut butter containing xylitol, sometimes labeled as birch sugar, which is toxic to dogs.
- If your dog has allergies or health concerns, check with your veterinarian before introducing a new treat.
- Use a ripe banana. A soft, spotty banana is easier to mash and blends more evenly into the batter.
- Use rolled oats for the intended texture. As written, these cookies are softer than traditional dog biscuits but still have a bit of chew. For a softer, finer texture, pulse the oats into oat flour and follow the mold variation in the recipe notes.
- Flatten the cookies before baking. The oat mixture is similar to my Banana Breakfast Cookie and doesn't spread like traditional cookie dough, so gently flatten each scoop with a fork for more even baking.
Happy Cooking! xo Kristen
How to Make Dog Cookies
- Prepare batter. In a medium bowl, whisk the egg. Add the banana and peanut butter, then mash with a fork to combine evenly. Stir in the oats. The mixture will be thick and slightly sticky.

- Portion out cookies. Scoop the batter into 1-tablespoon portions onto a parchment-lined baking sheet. Flatten slightly with a fork so the cookies bake evenly.

- Bake. Bake for 10-12 minutes, or until the treats are set and lightly golden on the bottom.
- Cool completely. Let the cookies cool completely before serving or storing.

How to Store Dog Cookies
- At Room Temperature: Once fully cooled, transfer to an airtight container and store for 3 days. If your kitchen runs warm, refrigeration is the safer option.
- In the Refrigerator: Store fully cooled cookies in an airtight container for up to 7 days.
- In the Freezer: Flash freeze the cooled cookies on a baking sheet for 30-60 minutes, then transfer to a freezer-safe bag or container and freeze for up to 3 months. Thaw in the refrigerator or at room temperature before serving.
And if you're looking for another homemade treat for your pup, don't miss my dog birthday cake, another flourless recipe that's perfect for celebrating their birthday.
Peanut Butter Dog Cookies

Ingredients
- 1 large egg
- ½ cup mashed ripe banana, ~1 large banana
- 3 tablespoons creamy, natural peanut butter, see important note
- 1 cup rolled oats
Instructions
- Preheat oven to 350℉ (175℃) and line a rimmed baking sheet with parchment paper.
- Whisk the egg with a fork in a large mixing bowl. Add the banana and peanut butter, and mix until the banana is fully mashed and everything is well combined. Add the oats and mix until they are fully moistened.
- Scoop the batter into 1-tablespoon portions onto the prepared baking sheet and flatten slightly with a fork so the cookies bake evenly.
- Bake for 10-12 minutes until lightly golden and fully set.
- 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!