Preheat oven to 400° F
Combine flour, sugar, baking powder, baking soda and salt. Cut in butter until crumbly.
Slowly add buttermilk, mashed banana and vanilla and stir to moisten.
Pat out dough on a well floured bread board until approximately 1 inch thick. Do not overwork dough. If dough is too moist, slowly need in a bit more flour until workable.
Using a floured biscuit cutter, cut out dough and place on a greased baking sheet.
Bake for 15 minutes or until a nice, light golden brown. Serve warm with butter and honey.