Mix butter and sugars together add eggs and vanilla and mix the bananas and the strawberries and the sour cream and cinnamon together

Slowly add in the flour baking powder and baking soda and mix ...sprinkle walnuts on top and add it to a banana loaf pan and put it in a preheated 350°F oven for 1 hour or until fork comes out clean...remove from oven let cool then serve and enjoy !