How to Make It
Toast pecans in a large frying pan over medium heat on a camp stove, stirring occasionally, until golden, about 5 minutes. Pour from pan to a bowl and set aside.
Melt butter in pan over medium heat. Add brown sugar and vanilla and cook, stirring occasionally, until bubbling, 1 to 2 minutes. Reduce heat to medium-low. Add bananas in a single layer and cook, turning once, just until warmed, about 2 minutes.
Turn off heat (to prevent a flare-up) and stir in rum. Turn stove on to high and cook bananas, stirring gently, until sauce is bubbling and slightly thickened, about 1 minute. Spoon bananas and sauce over cake or ice cream and sprinkle with pecans. Top with whipped cream.