Before I touch a single ingredient, I preheat my oven to 350°F. I line my loaf pan with parchment paper and give it a light grease too, since a well-prepped pan is the difference between a clean release and a banana bread that stubbornly clings to the sides.
In a large bowl, I mash my ripe bananas until they're mostly smooth, then whisk in the condensed milk until the mixture looks silky. I gently fold in the sifted self-rising flour last, stirring just until no dry streaks remain so I don't overwork the batter.
I pour the batter straight into my prepared pan and pop it into the oven for 30 to 35 minutes. I always start checking around the 28-minute mark since every oven runs a little differently, and I don't want to risk drying it out.
Once a toothpick comes out clean or with just a few moist crumbs, I pull the loaf out and let it cool completely in the pan. This step feels like torture when it smells this good, but slicing too early can make the middle collapse.