If eating soon - First take frozen bananas out of fridge. Run warm to hot tap water over frozen banana to enable you to peel it. Use a butter knife to clean off any skin parts left on banana. Cut off large brown spots. Do this quickly for each banana, the banana should still be frozen.
NOTE : Blend frozen bananas if you have a Vitamix or Blendtec, or other powerful blender. If your blender is not powerful, let bananas become soft then blend with alternative milk and salt. Then add pecans and freeze.
Blend frozen bananas, alternative milk and salt.
Stir in chopped pecans, or pecan pieces.
Freeze in an air tight container.