This quick bread is a comforting classic!
Preheat oven to 350 F. Lightly grease a 9x5 loaf pan and set aside.
Mix dry ingredients together in a bowl and set aside. In the bowl of a stand mixer (or using a handheld mixer), cream together sugar and shortening until fluffy. Add eggs, one at a time, and mix until combined, scraping the sides as needed. Add sour cream, bananas, and vanilla. Mix, scraping the sides of the bowl as needed. Add dry ingredients and mix together until just incorporated, then stir in walnuts with a spatula until evenly dispersed. Scoop batter into the loaf pan and bake for about one hour, or until the loaf is a deep brown and a toothpick inserted into the middle comes out clean.
Allow bread to cool in loaf tin for about 15 minutes, then turn out onto a cooling rack and allow to completely cool. Enjoy!