Marbled Chocolate Banana Bread is made special with chocolate! Melted dark chocolate is stirred into a portion of the banana batter. Then, it is layered in the loaf pan with chocolate and banana batter alternating. As a result, you get this gorgeous and delicious marbling!
In a large mixing bowl combine the flour, baking soda, and salt.
Place sugar and butter in a large bowl; beat with a mixer at medium speed until well blended. Add banana, eggs and sour cream. Beat until blended. Add flour mixture and beat at low speed just until moist.
Place chocolate chips in a medium microwave-safe bowl, and microwave at HIGH 1 minute or until almost melted, stirring until smooth. Cool slightly. Add 1 cup batter to chocolate and stir until well combined. Spray an 8 ½ x 4 ½-inch loaf pan coated with cooking spray. Alternate chocolate and regular batter by spooning into loaf pan. Bake at 350° for 1 hour and 15 minutes or until a wooden pick inserted in center comes out clean. Cool 10 minutes in pan on a wire rack. Remove from pan and cool completely on wire rack.