01 -
Set oven to 175°C and grease a 23×13 cm loaf pan.
02 -
In a large bowl, mash the ripe bananas until smooth.
03 -
Mix mashed bananas with creamy peanut butter, sugar, and eggs until the mixture is creamy and homogeneous.
04 -
Gradually add the flour, baking soda, and salt to the wet mixture, stirring gently until just combined to avoid overmixing.
05 -
Pour half of the batter into the prepared loaf pan, swirl in the jam or jelly evenly, then cover with the remaining batter.
06 -
Bake for 55 to 65 minutes, or until the top is golden brown and a toothpick inserted into the center comes out clean.
07 -
Allow the loaf to cool in the pan for 10 minutes before transferring it to a wire rack to cool completely.