Direction

1. Preheat the oven to 350 degrees F (175 degrees C). Generously grease a 9x5-inch loaf pan with 2 teaspoons butter. Mix together 1 tablespoon sugar and 1 teaspoon cinnamon in a small bowl; pour into the buttered pan. Swirl and tap the pan to distribute cinnamon sugar all over the inside, up to the rim. Set aside.
2. Whisk together flour, baking powder, remaining 1 teaspoon cinnamon, salt, and nutmeg in a medium bowl until well combined.
3. Beat together 1/2 cup butter and 1 cup sugar in a large bowl with an electric mixer until creamy. Beat in eggs one at a time, mixing well after each addition. Stir in mashed bananas and milk. Mix in flour mixture until thoroughly moistened (a few lumps are fine), then scrape batter into the prepared pan. Sprinkle with 1 teaspoon sugar.
4. Bake in the preheated oven until a toothpick inserted into the center of loaf comes out clean, about 1 hour. Let cool in the pan for 10 minutes before removing bread to a wire rack to cool completely.