My Maltese, Lulu, weighs 7 pounds. Most treats are too big for her, and she gets bored fast. But give her something cold to lick, and she’ll settle down on her mat for a good while. That’s why I started making these 3 ingredient banana oat dog treats as a frozen bark.
You cook plain oatmeal with water, mash in ripe banana, and spread it thin on a lined pan. Then you swirl in a few spoonfuls of plain pumpkin and freeze it. Once it’s solid, you snap it into small shards. No oven. No cookie cutters. And you can break off the exact size your dog needs.

Recipe Snapshot
| Step | Time |
|---|---|
| Cook ½ cup rolled oats in 1 cup water | 5 minutes |
| Cool and mash in 2 ripe bananas | 15 minutes |
| Spread, swirl in ¼ cup pumpkin | 5 minutes |
| Freeze until solid | 3 hours or more |
| Break into about 24 shards | 1 minute |
Each shard is roughly 16 calories by my estimate. Tiny dogs can have a piece the size of a postage stamp.
Are Bananas and Oats Safe for Dogs?
They are, in the right form and amount.
AKC’s article on bananas for dogs calls them a low-calorie treat with potassium, vitamins, and fiber. But they’re high in sugar. AKC says to give them as a treat, not as part of the main diet.
For oats, AKC’s oatmeal guide gives three clear tips that shaped this recipe:
- Cook it with water, not milk. Many dogs don’t handle dairy well.
- Make sure it’s cooked, not sprinkled raw on food. Raw oats are harder to digest.
- Keep it plain. Flavored oatmeal can have extra sugar and even xylitol, which is toxic to dogs.
The same AKC page also warns that too much fiber can lead to tummy upset. So small pieces are the way to go.
Why Make Bark Instead of Cookies?
I already make baked banana oat drop cookies. They’re great. But this bark does a different job:
- It’s cold. Licking a frozen treat takes time, and many dogs find it calming.
- It’s flexible. You can snap it into big or tiny pieces.
- It’s no-bake. You only use the stove for five minutes.
It’s softer than ice once it warms up a bit, so it’s gentle on small mouths.
Dog-Safe Ingredient Check
- Rolled oats: Plain, cooked in water. No milk, sugar, or flavor packets.
- Bananas: Ripe, peeled. No peel in the mix.
- Pumpkin: 100% pure canned pumpkin, not pie filling.
- Skip: chocolate chips, raisins, honey, and nut butters with xylitol. The ASPCA lists chocolate, raisins, and xylitol as dangerous for pets.
What Do You Need?
- ½ cup old-fashioned rolled oats
- 1 cup water (for cooking the oats)
- 2 ripe bananas, spotty is best
- ¼ cup plain canned pumpkin
- A 9×13-inch pan or a small baking sheet, lined with parchment

How Do You Make 3 Ingredient Banana Oat Dog Treats?
- Cook the oats. Bring 1 cup of water to a boil in a small pot. Stir in ½ cup rolled oats. Lower the heat and cook for about 5 minutes, stirring now and then, until thick.
- Cool it down. Take the pot off the heat. Let the oatmeal cool for about 15 minutes. It should be just warm, not hot.
- Mash the bananas. In a bowl, mash the bananas with a fork until smooth.
- Mix. Stir the oatmeal into the banana until it’s even.
- Spread. Pour the mix onto the lined pan. Spread it about ¼ inch thick with a spatula. It doesn’t need to fill the whole pan.
- Swirl. Drop small spoonfuls of pumpkin all over the top. Drag a butter knife or toothpick through each dollop to make swirls.
- Freeze. Put the pan in the freezer, flat, for at least 3 hours.
- Break. Lift the bark out by the parchment. Snap or cut it into about 24 shards.

Pro Tip
Don’t spread it too thin. Under ¼ inch, the bark shatters into crumbs when you break it. Around ¼ inch snaps into nice, clean pieces. If it’s too hard to snap, let it sit on the counter for 2 minutes first.
How Many Calories Are in Each Piece?
With USDA FoodData Central numbers, here’s my rough count:
- ½ cup dry rolled oats: about 150 calories
- 2 medium bananas: about 210 calories
- ¼ cup canned pumpkin: about 20 calories
That’s around 380 calories for the batch. Cut into 24 shards, each is about 16 calories.
VCA Animal Hospitals says treats should be 10% or less of your dog’s daily calories. Lulu is tiny, so she gets one small shard, broken in half. A 60-pound dog could have a couple of full shards.

Vet Tip
Small dogs can get an upset tummy from too much banana or fiber. Start with one small piece. If your dog has diabetes, is overweight, or has a sensitive stomach, check with your vet before adding sweet fruit treats.
What Swaps Work?
- Yogurt swirl: Use plain, unsweetened Greek yogurt instead of pumpkin. Check for no xylitol. Our yogurt blueberry dog bites show a frozen yogurt treat.
- Blueberries on top: Press a few blueberries into the bark before freezing. Halve them for small dogs.
- Oat flour: Not needed here. Cooked rolled oats give the bark its body.
- Apple: Swap one banana for ½ cup unsweetened applesauce. The bark gets icier.
What If It Doesn’t Turn Out Right?
Here are the fixes for the problems I’ve hit:
- Too icy and hard: The bananas weren’t ripe enough, or the oatmeal was runny. Use spotty bananas and cook the oats until thick.
- Falls apart into crumbs: It was spread too thin. Go for about ¼ inch next time.
- Sticks to the pan: Always line it with parchment. Wax paper can stick to frozen food.
- Pumpkin swirl sank: The oatmeal was still warm. Let it cool more before you add the pumpkin.
- Dog won’t touch it: Some dogs don’t like very cold food at first. Let a piece soften for a few minutes, then try again.
How Do I Store It?
- Store the shards in a freezer bag or a sealed box with parchment between layers.
- Keep them in the freezer for up to 2 months.
- Don’t keep them in the fridge. They get soft and mushy within hours.
If this one is a hit, try another from my 3-ingredient treat collection.
Frozen Banana Oat Bark FAQ
Can I use instant oats? Plain instant oats work if they have nothing added. Read the label. Flavored packets are a no.
Do I count the water as an ingredient? I don’t. It’s just for cooking the oats. The three real ingredients are oats, banana, and pumpkin.
Can I serve it straight from the freezer? Yes. Most dogs lick it first, then crunch. If your dog has sensitive teeth, let it soften for a minute.
Can puppies have this? Cold, soft bark is often a hit with teething puppies. Ask your vet first, and give only a small piece.
What else is good frozen? Try our frozen pumpkin yogurt dog treats or the watermelon frozen dog bites.
Key Takeaway
Cooked oatmeal, ripe banana, and a pumpkin swirl freeze into a bark you can break to any size. Cook the oats with water, keep everything plain, spread it about ¼ inch thick, and store it in the freezer. Give small pieces, since bananas are sweet and oats are high in fiber.
My Final Thoughts
These 3 ingredient banana oat dog treats are now part of Lulu’s afternoon routine. She licks her shard on the mat, and I get ten quiet minutes for coffee. Everyone wins. For more banana ideas, see our healthy banana dog treats.
When I’m out of homemade ones, I keep a bag of simple ready-made dog treats as a backup.
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