Banana Donuts with Peanut Butter Frosting

I don't think I need any words to describe this confection. I gave them to some friends and there was nothing left but crumbs. The last donut was fought over! (It was guy v. gal, so naturally the gal won)

I'll cut to the chase so you can go ahead and start making these.

Ingredients:
For the donuts
1 1/4 C flour
2 tsp baking powder
1/2 tsp salt
1 1/2 tsp ground cinnamon
3/4 C granulated sugar
2 eggs, room temperature
1 1/4 C ripe bananas, mashed (I used 3 total)
2 tsp vanilla
1/2 C vegetable oil

For the frosting
2 tbsp salted butter
1/2 C smooth peanut butter
1/2 C powdered sugar
hot water if needed

Directions:
 - Donuts - 
1. Preheat oven to 350 degrees and grease a 6-cavity donut pan (I use Nordic Ware, but can't seem to find a link to one). I also use Pam cooking spray with flour, specifically meant for baked goods. I've noticed if I use vegetable oil Pam, it makes my food taste bleck.

2. In a large bowl, mix together flour, baking powder, salt and cinnamon. In a separate bowl, mix together the sugar, eggs, bananas, vanilla and oil.

3. Stir the wet ingredients into the dry until combined.

4. Spoon the batter into the donut pan just right below the rim. Bake for 15 minutes until golden brown.

5. Allow the donuts to cool COMPLETELY before frosting.

 - Frosting -
1. Brown the butter in a pan. This takes a few minutes, the butter will melt and sizzle, then quickly turn brown, this is where you stop browning it.

2. Melt the peanut butter in a small bowl by placing it in the microwave for 30 seconds. Add the browned butter, then add in the powdered sugar. If the frosting is too thick, add only 1 tbsp hot water at a time.

3. Using a piping bag or a spreading knife, decorate each donut with the frosting.