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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.













Can I replace the banana with something else? like apple sauce
Yes, applesauce works great as well. Hope the pup enjoys.
Do you cook the oatmeal first?
There is no need to cook the oatmeal first Brenda!
Hi there! Can these be frozen?
Hi Danielle! Yes, these can be frozen for up to 3 months--just be sure to defrost BEFORE you give to your dog 🙂
I made my husband oatmeal raisin cookies today and, as always, our 3 pooches must sample a little of whatever it is we are eating. So, I searched for a pet-safe oatmeal cookie and found this one. The batter made exactly 12 cookies and we are all waiting with anticipation the final result. They smell quite delicious! Baked them up for 16 minutes and they are delicious! The dogs love them and they are awesome in their simplicity, I think next time, I will add some cinnamon (safe for dogs) for a little zip. Thank you for this simple and simply delicious recipe. You have made Genesis, Exodus and Luke very happy. Mommy & Daddy too!
Oh how sweet!! I am so glad your puppies are all very happy 🙂
I just made these for my 100lb Boxita. He absolutely loved them. Thanks for sharing this recipe. I have been looking for a healthy treat for my big baby. I love knowing what is in the food he eats.
Oh I am so glad your dog enjoyed them 🙂
So glad I got to meet Bailey! I would have loved to share one of these cookies with her! Thanks for including Bailey in Saucy Saturdays too!
Bailey loved meeting you all too 🙂
so cute! I'll have to make these for my dogs - love the photos of your kids and dogs!!
I hope you do make them for your kids Tianna! And thank you 🙂