Combine first 4 ingredients in a large skillet; cook over medium heat, stirring constantly, until bubbly. Add bananas, and cook 2 to 3 minutes or until thoroughly heated. Remove from heat.
Heat rum in a small saucepan over medium heat (do not boil). Quickly pour rum over banana mixture, and immediately ignite with a long match just above the liquid mixture to light the fumes (not the liquid itself). Let flames die down; serve immediately with Buttered Rum Pound Cake.