Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish or line it with parchment paper.

In a mixing bowl, mash the ripe bananas until smooth with some small chunks remaining.

Mix in melted butter, sugar, eggs, and vanilla extract until well combined.

In another bowl, whisk together flour, baking soda, and salt. Gradually add to the banana mixture until just combined; avoid overmixing.

Pour the batter into the prepared baking dish and bake for 25-30 minutes or until golden brown and a toothpick comes out clean.

For the icing, combine brown sugar and heavy cream in a saucepan over medium heat. Bring to a boil and simmer for about two minutes before removing from heat; stir in sea salt.

Drizzle the icing over cooled bars and enjoy!