Oatmeal & Banana Squares – Easy Dog Cookies
Homemade dog treats don’t need to be complicated, and these oatmeal and banana squares are proof of that. They come together quickly with everyday ingredients, require only one bowl, and bake into soft, chewy bites that most dogs instantly love. The natural sweetness from ripe bananas makes them appealing without adding sugar, while oats create a gentle texture that works well for puppies, adult dogs, and even senior pets.
When you bake these at home, you know exactly what goes into your dog’s snacks. There are no unnecessary fillers, artificial flavors, or ingredients you can’t pronounce. The texture is easy to adjust too — keep them soft for older dogs or bake a little longer if your pup prefers a firmer chew. These squares are practical for daily treats, training sessions, or simply showing your dog a little extra love.
Recipe Overview
Prep Time
The preparation is quick and easy, taking only a few minutes. Since everything is mixed in one bowl, you spend less time cleaning and more time enjoying the baking process.
Cook Time
The baking time is short enough to fit into a busy day. You’ll see the mixture turn lightly golden and set as it cooks, which gives the treats their chewy structure.
Total Time
From start to finish, the entire process is fast, making this a realistic recipe you can prepare anytime, even on a weekday.
Servings
The batch yields enough small squares for multiple servings, making it convenient to store and use throughout the week.
Ingredients
You only need a handful of simple ingredients:
- Ripe bananas – the softer and spottier, the better for flavor and moisture
- Rolled or quick oats – quick oats help create a softer texture
- One large egg – helps hold everything together
- Unsweetened peanut butter – always check that it is xylitol-free
- Coconut oil (optional) – adds extra moisture and chewiness
- Ground cinnamon (optional) – gives a gentle aroma many dogs enjoy
Every ingredient serves a purpose. Bananas naturally sweeten and soften the mixture, oats create structure, and the egg binds everything so the squares hold their shape after baking.
Step-by-Step Instructions
Prepare the Pan
Start by heating your oven to 325°F (165°C). Line an 8×8-inch baking pan with parchment paper and let a bit hang over the edges so lifting the treats out later is easy.
Mash the Bananas
Place the ripe bananas in a mixing bowl and mash them with a fork until mostly smooth. A few small lumps are perfectly fine and actually help with texture.
Mix Wet Ingredients
Add the egg, peanut butter, and coconut oil to the mashed banana. Stir until the mixture looks creamy and well combined.
Add Dry Ingredients
Mix in the oats and a small pinch of cinnamon if using. The mixture should feel thick and sticky, not thin or runny. If it seems too wet, add a little more oats.
Press into the Pan
Spread the mixture into the lined pan. Use a spatula or slightly damp fingers to press it into an even layer, making sure the corners are filled so everything bakes evenly.
Bake
Bake for around 20–25 minutes until the top looks set and the edges turn lightly golden. If you want a firmer or crunchier texture, leave them in for a few extra minutes.
Cool Completely
Let the slab cool in the pan for about ten minutes, then lift it out and allow it to cool fully on a rack. Cooling helps the texture firm up so slicing is easier.
Slice
Cut into small squares. Tiny pieces are ideal for training, while larger one-inch squares work well for regular treats.
Serve
When introducing any new treat, start with a small amount. One or two pieces are usually enough to see how your dog responds.
What Makes These Dog Cookies So Loved

These treats work because they’re simple and practical. You don’t need special tools, and the ingredients are affordable and easy to keep on hand. The soft texture makes them easy for dogs to chew, especially seniors or small breeds. Since bananas bring natural sweetness, there’s no need for added sugar or artificial flavors.
Many dog owners appreciate how flexible this recipe is — you can slice small pieces for training or slightly bigger ones for everyday rewards. The one-bowl method also means less cleanup, which makes baking feel effortless instead of like a chore.
How to Store
Room Temperature
Keep the treats in an airtight container for up to two days if the kitchen stays cool and dry.
Refrigerator
For longer freshness, store them in a sealed container for about a week. Adding a paper towel helps absorb excess moisture and keeps them from becoming soggy.
Freezer
Freeze the squares in a single layer first, then transfer them into a freezer bag. They keep well for up to three months. Thaw only the amount you need at a time.
Labeling
Adding a date to the container or freezer bag helps you keep track of freshness and avoid waste.
Health Benefits
Oats
Oats are gentle on digestion and provide steady energy, making them a safe grain option for many dogs. They also contain fiber and useful nutrients that support overall wellness.
Bananas
Bananas add potassium and vitamin B6 along with natural sweetness, which means you don’t need extra sugar.
Egg
Eggs supply high-quality protein that supports muscle health and helps maintain a balanced diet.
Peanut Butter
When unsweetened and free from harmful additives, peanut butter gives healthy fats and flavor that most dogs absolutely love.
Coconut Oil
Used in small amounts, coconut oil can improve texture and help keep treats moist and chewy.
Remember that treats should stay moderate — generally no more than about ten percent of your dog’s daily calories. If your dog has special dietary needs, it’s always smart to check with a vet before adding new foods.
What Not to Do

- Never use peanut butter containing xylitol or artificial sweeteners.
- Avoid adding salt or sugar — dogs simply don’t need them.
- Don’t serve the treats while hot; always allow full cooling.
- Keep portions reasonable, especially for smaller dogs.
- If your dog shows signs of allergies to oats, eggs, or peanuts, adjust the recipe or skip those ingredients.
Recipe Variations
Pumpkin Oat Squares
Replace one banana with plain pumpkin puree for a gentler option often suited to sensitive stomachs.
Apple & Oat Version
Swap one banana with unsweetened applesauce. If the batter becomes too wet, mix in a little extra oats.
Grain-Friendly Adjustments
Use certified gluten-free oats if needed. You can also experiment with finely ground coconut flakes and a small amount of flaxseed for variation.
Crunchy Treat Option
Spread the mixture thinner and bake longer to create crispier bites.
Peanut-Free Alternative
Use mashed sweet potato or pumpkin as a substitute for moisture and binding.
Nutrition Boosters
Small additions like ground flaxseed or chia seeds can increase fiber, but keep add-ins light so the dough still holds together.
FAQ
Can I use steel-cut oats?
Steel-cut oats stay too firm during a quick bake and can be hard for dogs to chew. Rolled or quick oats work much better.
Is peanut butter safe for dogs?
Yes, as long as it’s unsweetened and completely free from xylitol. Always read the label carefully.
How many treats can my dog have daily?
Start small. One or two pieces for a medium-sized dog is usually enough, then adjust based on size and activity level.
Can I make this without eggs?
Yes. Applesauce or pumpkin puree can replace the egg, though the final texture will be slightly softer.
How can I make them extra soft for senior dogs?
Use quick oats and bake for the shorter time. Adding a bit more banana or applesauce helps maintain moisture.
Do these work for training?
They’re ideal for training when cut into tiny pieces. You can even dry them slightly in the oven so they don’t crumble in your pocket.
Can I add blueberries or carrots?
Yes, but use small amounts and chop finely so the batter stays balanced.
What if my dog has a sensitive stomach?
Introduce slowly and watch for any reaction. Pumpkin or applesauce versions are often easier to digest.
Wrapping Up of Oatmeal & Banana Squares
These oatmeal and banana dog cookies are simple, reliable, and genuinely rewarding to make. With just a few ingredients and minimal effort, you get soft, wholesome treats that are easy to store and easy for your dog to enjoy. Whether you’re baking for training rewards, daily snacks, or just a homemade gesture for your furry companion, this recipe gives you a safe and flexible base you can return to again and again.

