Step 1

Preheat oven to 350 degrees F. Coat a 9- x 5-inch loaf pan with cooking spray.

Step 2

In a medium bowl, combine chocolate chips, walnuts, brown sugar, and cinnamon; mix well and set aside.

Step 3

In a large bowl, with an electric mixer, beat butter and sugar until creamy. Beat in eggs, bananas, and vanilla. Add flour, baking soda, and salt; mix well.

Step 4

Pour half the batter into loaf pan. Evenly sprinkle with chocolate chip mixture and pour remaining batter on top.

Step 5

Bake 60 to 65 minutes, or until toothpick inserted in center comes out dry. Let cool 20 minutes, then remove to a wire rack to cool completely.