Preheat oven to 350 degrees F(175C.)
Add bananas, brown sugar and lemon/lime juice to a sauce pan over medium high heat then use a potato crusher to mash your bananas until sugar is dissolved and mixture is combined. Allow to cool for 15-20 minutes
Mix together your Graham Cracker crumbs, crushed vanilla wafers and melted butter then press them into the bottom of your 8 inch springform pan. Set aside
Beat your cream cheese, granulated sugar,1 tsp pure vanilla and vanilla butter and nut extract on low speed until smooth and combined
Add your eggs one at a time mixing on low speed until you no longer see the yellow from the yolks
Add your cooled banana mixture to your cream cheese mixture then mix, just until combined
Pour your cheesecake batter over your cookie crust then bake in a water bath for 45-55 minutes or until only the center of cheesecake jiggles
Turn your oven off and leave the oven door open, bringing cheesecake to room temperature before removing from your oven. Chill for 8 hours or overnight