salt. This keeps the dry ingredients from clumping and helps the loaf rise evenly.
Gently add the dry ingredients to the wet banana mixture in two additions, stirring just until the flour disappears each time. The batter should be thick and a bit rustic, not perfectly smooth. Avoid overmixing; a few streaks are fine.
In a small bowl, make the cinnamon swirl topping by stirring together 2 tablespoons sugar, 1 teaspoon cinnamon, and 1 tablespoon melted butter until it looks like damp, sandy crumbs.
Cinnamon sugar topping in a small
