Peanut Butter Dog Cookies

Name: Peanut Butter Dog Cookies
Prep time: 5 min
Cook time: 10 min
Total time: 15 min
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

Real Food

By Kristen Chidsey

4.94 from 122 votes

Updated Aug 15, 2026

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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.

Boston Terrier about to eat a homemade dog treat made with oats, banana, and peanut butter.

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.

Oats, peanut butter, egg, and mashed banana combined in mixing bowl.

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.

Peanut butter oat dog cookie mixture portioned and flattened on a parchment-lined baking sheet.

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.

Soft peanut butter oat dog cookies next to a jar filled with cooled homemade dog treats.

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.

4.94 from 122 votes

Peanut Butter Dog Cookies

By: Kristen Chidsey

Servings: cookies

Prep: 5

Cook: 10

Total: 15

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These soft, slightly chewy peanut butter dog treats are made with just 4 ingredients in just 15 minutes. No flour, rolling, or cookie cutters needed.

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

Always check with your veterinarian before introducing new foods, especially if your dog has allergies or health concerns.

Important Note on Peanut Butter: Never use peanut butter containing xylitol, sometimes labeled as birch sugar, which is toxic to dogs.

Storage: Let cool, then store in an airtight container for 3 days at room temperature and for a week in the refrigerator.

Freeze Dog Treats: Let cool, then place in an airtight, freezer-safe container, and store them in the freezer for up to 3 months. Pull out a treat or two at a time and let them fully defrost at room temperature or in the refrigerator before allowing your dog to enjoy.

Make the Treats Softer: These dog treats are already soft and perfect for most dogs, but if desired, use a food processor to blend the oats into oat flour before adding the other ingredients. The batter won't be as thick, so best to use a mold (like these cute dog bones) and bake at 350 for 12-15 minutes. Let cool in the mold for 5 minutes and then flip out of the mold.