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Dog Birthday Cake Recipe

Peanut Butter Banana Biscuits | 3-Ingredient Dog Treats

Written by: Sarah C.

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Published on

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Time to read 4 min

3-Ingredient, All-Natural Treats Dogs Go Bananas For 🍌🥜✨


If your dog hears the sound of a banana peel or a peanut butter jar and runs to the kitchen — you’re in the right place.


These Peanut Butter Banana Biscuits are the easiest, healthiest, most tail-wag-worthy treats you’ll ever bake. With just three simple ingredients, they come out golden, crunchy, and full of real flavor your dog will adore.


No added sugar. No preservatives. Just banana, oats, and peanut butter — baked with love. 💛

Why I Started Making Peanut Butter Banana Biscuits

Store-bought dog treats always felt… complicated. Too many ingredients, too many labels I couldn’t pronounce.


Then one morning, while making my smoothie, my dog stared up at me — eyes locked on the banana and peanut butter. I realized: these are ingredients we both trust.


So I mashed, mixed, and baked. And just like that, the Peanut Butter Banana Biscuits were born — crisp on the edges, chewy in the middle, and absolutely irresistible.


Now they’re our Sunday ritual — simple, wholesome, and full of joy.

Simple Ingredients for Peanut Butter Banana Biscuits

You only need three ingredients — no complicated prep, no long list of fillers.


 Ingredients:

  • 1 ripe banana — natural sweetness & potassium

  • ½ cup natural peanut butter (unsalted, no xylitol)

  • 1½ cups oat flour or rolled oats (fiber & crunch)


That’s it. Blend them together, shape, and bake.


Real food. Real smell. Real love.

Step-by-Step: How to Make Peanut Butter Banana Biscuits

1️⃣ Preheat oven to 175 °C / 350 °F.
2️⃣ Mash banana until smooth, stir in peanut butter.
3️⃣ Add oat flour and mix into a thick dough.
4️⃣ Roll out on parchment paper and cut with a bone-shaped cutter.
5️⃣ Bake 25–30 minutes until golden and firm.
6️⃣ Cool completely before serving.


📌 Pro Tip: For a crunchier version, let them cool in the oven with the door slightly open.


The smell alone will make your dog think it’s their birthday.

Dog Birthday Cake Recipe

Why Dogs Love Peanut Butter Banana Biscuits

  • 🍌 Banana → natural sweetness, potassium & fiber

  • 🥜 Peanut Butter → protein & healthy fats for energy

  • 🌾 Oats → gentle on digestion, keeps fur shiny


Every ingredient works together to make these Peanut Butter Banana Biscuits nutritious, satisfying, and safe — even for sensitive tummies.

Storage Tips

  • Keep in airtight jar → up to 10 days

  • Refrigerate → up to 2 weeks

  • Freeze → up to 2 months


Reheat 5 minutes at low temp for that fresh-baked crunch.


Your kitchen stays clean, your dog stays happy.

Dog Birthday Cake Recipe

Optional Add-Ons

Want to make them even more fun? Try these upgrades:


  • Add 1 tbsp honey for a glossy finish.

  • Mix in chia seeds for extra fiber.

  • Use coconut oil for a subtle sheen and aroma.

  • Add a drizzle of dog-safe yogurt icing for birthdays.

Dog Birthday Cake Recipe

What Dog Moms Are Saying

“They smell like cookies — my dog literally drools while they bake!” – Emma
“These Peanut Butter Banana Biscuits are the only treats my picky lab eats.” – Laura
“3 ingredients, no guilt — just joy.” – Sophie

Final Thoughts

These Peanut Butter Banana Biscuits prove that healthy doesn’t have to be complicated.


They’re crisp, golden, and full of love — a treat that feels good to give. Because the best moments with your dog are made of simple things: a banana, a spoon of peanut butter, and a wagging tail.


Bake these once — and your dog will never let you buy store-bought again.


📌 Save this recipe on Pinterest and make your own Peanut Butter Banana Biscuits today. 🐶💛


Frosting Ideas (Dog-Safe)

  • Plain Greek yogurt

  • Blended banana puree

  • Mashed sweet potato

  • Drizzle of melted dog-safe peanut butter

Try swapping:

Every pup is different — some have peanut sensitivities, some can’t have eggs, and others just have picky-princess taste buds (we love them anyway 🐶💖).
These easy swaps make every Dog Birthday Cake Recipe flexible and pup-safe:


🥔 Instead of Pumpkin → Use Sweet Potato

Sweet potato is naturally creamy, gentle on digestion, and adds natural sweetness.
It creates a soft, dense birthday-cake texture dogs go wild for.
Great for sensitive tummies and picky eaters.


🍌 Instead of Peanut Butter → Use Mashed Banana

Perfect for pups who can’t have peanuts or need a lower-fat option.
Mashed banana adds moisture + a lightly sweet flavor without sugar.
Also ideal for puppies or senior dogs who do better with softer treats.


🥄 Instead of Eggs → Use Flax “Egg”

For egg allergies or vegan-leaning treats:


  • 1 tbsp ground flaxseed
  • 3 tbsp warm water
  • Let sit 5 minutes to thicken

This binds the batter and keeps the cake moist (but still sliceable).

Dog Birthday Cake Recipe

Pro Tips


  • Cake texture should be like muffin batter

  • If runny — add 1–3 tbsp oat flour

  • If dry — add splash of water or applesauce

  • Use tiny amount of decorations — avoid sugar sprinkles

  • Always use xylitol-free peanut butter

  • Introduce new foods slowly

  • Pumpkin is great for digestion — don’t over-serve daily



⭐ Final Thought

At the end of the day, the cake is only half the magic.
The real celebration is the wagging tail, the happy dance, and that look in their eyes that says, “You did this for me?”

Whether you're baking with oat flour, almond flour, pumpkin, or banana — your pup doesn’t care about the ingredients.
They care about you, the moment, and the love behind it.

Slice small, serve with cuddles, and enjoy every second — because birthdays don’t just mark another year for them…
they mark another year of memories you get to share together. 🎂🐾💛

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