For the Banana bread * ½ cup unsalted butter room temperature * 1 cup granulated sugar * 2 large eggs room temperature * 3 ripe bananas mashed * 2 cups all-purpose flour * Pinch of salt * 1 teaspoon baking soda For The Streusel topping * 5 tablespoon butter cold cut to pea size. * ⅓ cup light brown sugar * ⅓ cup All Purpose Flour * ¾ teaspoon ground cinnamon