Step 1

Preheat oven to 350 degrees. Mash enough bananas to get 1 1/2 cups. Set aside.

Step 2

Lightly spoon flour into measuring cups and level. Combine flour, baking soda, and salt. Cream sugar and butter. Add bananas, eggs, and yogurt, beating until just blended.

Step 3

Add flour mixture. Beat on low until just moistened.

Step 4

Microwave chocolate chips in a medium bowl for 1 minute, stirring every 20 seconds. Stir until smooth. Cool slightly. Add 1 cup batter to chocolate, stirring until well-combined. Spoon chocolate batter alternately with plain batter (so you have stripes of plain and chocolate batter) in an 8 ½” x 4 ½” loaf pan coated with cooking spray. Swirl batters with a knife.

Step 5

Bake for 1 hour 15 minutes (set a timer for 1 hour and check on it after that)–the bread is done when golden brown on top and a knife inserted into the center comes out clean. Remove from oven and cool on a wire rack for 15 minutes, then remove from pan and cool completely before slicing. Store any leftovers tightly wrapped in plastic wrap or in an airtight container.