Bananas Foster Cake | America's Test Kitchen

Ingredients

• 1/2 cup dark rum
• 1/2 cup packed (3 1/2 ounces/99 grams) dark brown sugar
• Pinch table salt
• 2 tablespoons unsalted butter , chilled
• 4 ripe bananas
• 1/8 teaspoon ground cinnamon
• 20 tablespoons (2½ sticks) unsalted butter , cut into 20 pieces and softened
• 1/8 teaspoon salt
• 2 1/2 cups (10 ounces/283 grams) confectioners' sugar
• 1/4 cup dark rum
• 1 teaspoon vanilla extract
• 3 (8-inch) baked yellow cake rounds