Preheat your oven to 350°F / 177°C.
Line a standard muffin tin with 10 paper liners.
In a medium bowl, whisk together the whole wheat flour, potato flour, flax meal, baking soda, baking powder, and salt.
In a separate large bowl, mix together the melted coconut oil and Sucanat.
Add the dry flour mixture to the wet and mix until the texture resembles slightly wet sand.
Slowly stir in the milk until just combined. Gently fold in the mashed bananas. The batter will be thick.
Scoop a heaping ¼ cup / 60 ml (2 fl oz) of batter into each lined muffin cup.
Bake for 27 to 30 minutes, or until a toothpick inserted into the center of a cupcake comes out clean.
Transfer the cupcakes to a wire rack to cool completely before frosting.
To make the frosting, mix together the peanut butter, Yogurt Cheese, honey, and vanilla extract in a small bowl until smooth and well combined.
Once the cupcakes are completely cool, spread the frosting evenly over the tops.