Mash your banana in a baking dish. Try to get it as smooth as you can but it's okay to have some lumps
Whisk together the milk, eggs, cinnamon, vanilla, and peanut butter if using
Dip bread into the mixture to coat it on both sides
Heat skillet or griddle and melt butter under medium-low to medium heat. Once it is bubbly, add the soaked bread and cook for 2-3 minutes on each side, until golden brown
Serve with fresh Jungle Farm fruit - strawberries, raspberries, saskatoon berries