Preheat the oven to 350º F and line a cupcake pan with 5 paper liners.
In a medium mixing bowl, add the banana and mash it. Then add the egg in and mix together well.
Add in the honey, olive oil, and peanut butter to the mixing bowl and stir together well.
Then add in the oat flour and baking soda and mix to form a thicker dough.
Scoop out the dough into the cupcake pan and try to evenly fill the liners to about ⅔ of the way. Use the back of a spoon or a spatula to pat down the dough so that they are all about the same size and nice and rounded.
Bake for 20-25 minutes on the bottom rack, until you are able to stick a toothpick or wood skewer into one and it comes out clean.
While the cupcakes are baking, add the frosting ingredients into a medium mixing bowl and use a spatula or handheld mixer to blend well making sure the icing is not clumpy.
Scoop the frosting into a plastic bag, close the bag and then cut one of the corners furthest from the bag closure on a diagonal about ½ inch.
Remove the cupcakes from the oven and let them cool for 5-10 minutes on a wire rack.
Frost your cupcakes starting at the end of the cupcake by piping the icing in a circular fashion starting on the outside and then moving inward.
Repeat until all of the cupcakes are frosted and top with your dog’s favorite cookies. I recommend my pumpkin spice dog cookies!