Welcome to discusscooking!! If you would, type in the ingredients to your recipe then instead of typing in the method type in exactly how you make it i.e., I then sift the all-purpose flour together with the baking powder and salt, etc. Include how you mix the ingredients, i.e., mixer, whisk, hand beater, etc., and in what order you do things. Also include what kind of pan you cook the bread in - gray metal pan, dark metal pan, stone, glass, etc. and what temp.
When I make banana bread mine always takes longer to bake too but when a knife finally comes out clean all of the bread is still moist and light. Thanks, I'll be watching for your answer on and off tonight.
"Count yourself...you ain't so many" - quote from Buck's Daddy