Begin by thoroughly washing your ripe but firm banana peels to remove any residues. Using a sharp knife, cut the peels into strips about 1-inch wide.

In a medium bowl, combine liquid smoke, soy sauce, and maple syrup. Add garlic powder and onion powder. Whisk together until well blended.

Carefully place the banana peel strips into the marinade and allow them to soak for at least 15 minutes, or up to 30 minutes for deeper flavor.

Heat the neutral oil in a large skillet over medium heat until hot enough to sizzle when banana peels are added, about 2-3 minutes.

Add the marinated banana peel strips to the skillet in batches. Cook for about 3-4 minutes per side until golden brown and crispy.

Transfer the crispy banana peel strips to a plate lined with paper towels to drain excess oil. Allow to cool slightly before serving.