To prepare a we be jammin jamaican banana bread recipe, first preheat the oven to 350 degrees F (180 degrees C). Grease and flour two 8-inch loaf pans and set aside. Sift the flour, baking powder, sugar, cinnamon and salt into the bowl of an electric mixer and beat on medium-high speed until the mixture is light and fluffy, about 5 minutes. Add the bananas, oil and vanilla and mix until just combined. Pour the batter into prepared pan and bake in the preheated oven for 35 to 40 minutes or until toothpick inserted in center comes out clean. Let cool in pan for 10 minutes before removing to wire rack to cool completely.