Easy Dog Birthday Cake Recipe – Happy 3rd Birthday Indy!

Indy's 3rd Birthday

We missed Indy’s first and second birthdays; the first year we went to my parent’s for the weekend (my birthday is two days before her’s) and last year we were in California. Now don’t get me wrong, it’s not like she didn’t have a birthday. We celebrated when we saw her and as she stayed with the grandpawrents they made sure she was spoilt rotten, but it’s just not the same.

We didn’t get her a present this year (last year she had an avocado toy and birthday biscuit we bought from Tails in San Luis Obispo… if you’re ever in SLO CAL, I definitely recommend a visit). She has everything she wants, so as we were here to celebrate with her on her actual birthday, I decided to make her a homemade treat, which is always a winner.

Indy's 3rd Birthday
Dog Birthday Cake

This dog birthday cake recipe is really easy to make; less than an hour from start to finish and your dog will love you for it. The frosting is optional, but who doesn’t love icing? You could decorate it with your dog’s favourite treats, biscuits or dog chocolate. I used some sugar sprinkles, but sugar isn’t great for dogs so if you do this please apply them sparingly. The ones I used (Dr Oetker) were coloured with natural colourants.

Make sure to use dog-friendly, smooth peanut butter that is xylitol free. This isn’t an ingredient that is really used in the UK but can be found in some peanut butters in the US.
I used supermarket own brand smooth peanut butter, but you can get dog-friendly Peamutt Butter which doesn’t contain sugar or salt.

The oat flour is really easy to make; just blitz some rolled oats in a blender or food processor. You could use most other flours, but avoid soy and corn as many dogs are sensitive to them and will struggle to digest them properly.

If your dog isn’t a fan of banana you could substitute it for apple sauce. It would be best to make your own unless you can get hold of unsweetened, as it usually contains a lot of sugar. Don’t leave the fruit out or it will change the texture and you’ll end up with a very dry cake that won’t hold its shape.

This cake is very rich, especially with the cream cheese frosting, so make sure your dog doesn’t overdo it. It is suitable for humans if you fancy helping your pup out (I will admit, I did try some and it was actually pretty tasty). It will keep for 3 – 4 days in the fridge, or can be sliced and frozen for future treats!

Easy Dog Birthday Cake
Easy Dog Birthday Cake UK
Dog Birthday Cake Recipe

Peanut Butter, Banana & Apple Dog Birthday Cake

This is a really easy one bowl dog-friendly cake that any pup will love. The apple and banana give it a lovely moist finish (because who wants a dry birthday cake) and the easy frosting will be a big hit.
This is a rich cake, but it freezes well so you could cut it into treat size pieces if you're only making it for one dog. The receipe will also size up well if you want to make a larger cake.
Prep Time 10 mins
Cook Time 30 mins
Total Time 40 mins


  • ½ cup oat flour
  • 1 tsp baking powder
  • 1 egg
  • cup vegetable oil
  • 2.5 tbsp peanut butter
  • ½ banana, mashed
  • 50g apple, grated (approximately a heaped 1/4 cup)
  • 1 tbsp honey


  • 1 tbsp cream cheese
  • ½ tbsp peanut butter
  • ½ tbsp Greek yoghurt


  • Preheat the oven to 180°C (350°F). Grease and line your baking tin – I used a square 5" tin.
    2. In a large bowl mix together the flour and baking powder. Add the egg and oil and gently stir to combine. Once the flour is incorporated add the banana, peanut butter, apple and honey.
    3. Transfer the batter to the prepared tin and bake for 30 – 35 minutes until a tester inserted into the centre comes out clean. Allow to cool for 5 minutes in the tin before transferring to a cooling rack.
    4. If you want, cut the cake in half and stack in two layers (I trimmed mine down to form a square cake). Sandwich with the frosting and top with more frosting and decorations of your choice.


  • In a bowl mix together the cream cheese and Greek yoghurt. Add the peanut butter and mix to combine.


  • Make sure to use dog-friendly smooth peanut butter that is xylitol free.
  • Will keep for 3 – 4 days in the fridge.
  • This cake freezes well, perfect for future treats!  Wrap in cling film or store in an airtight container.
  • As this cake is made with human ingredients, it’s completely safe for humans to eat as well if you fancy tucking in with your furry friend.


Easy Dog Birthday Cake Recipe

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