Preheat the oven to 350°F. Line two 6-inch cake pans with parchment paper.
To make the batter: In a large mixing bowl, add the bananas and mash up using a fork.
Add the olive oil, eggs, and honey and mix together using a hand mixer (or whisk).
Add in the all purpose flour, fine shredded coconut and baking powder and mix together until combined.
Fold in the blueberries.
Transfer the batter to the prepared cake pans evenly, they will weigh about 430 grams each.
Bake for 25 to 30 minutes, or until a toothpick inserted in the center comes out clean.
Let the cakes cool completely before removing from the pans.
To assemble the cake: I like to trim one of the cake layers as the bananas can make the cakes a little domed. I do this just with a bread knife and just trim off the top. This trimmed off cake makes a great little treat for your dog if they are helping in the kitchen!
Place the trimmed cake layer on your cake stand or cake plate first. Then add about 1/2 cup of the Greek yogurt and spread evenly.
Top with the second cake layer, putting the domed side up. And, add the remaining Greek yogurt on top and spread it evenly.
I like to decorate with a little bit of freeze-dried blueberries around the edge, but this part is optional.
Then it’s ready to slice and serve! Always be sure to feed dogs small pieces so they can easily chew. Store leftover cake in an airtight container in the fridge and use it for treats or food toppers.