Peel and slice each banana lengthwise into 6 strips.
On each piece of the cut spring roll wrapper, arrange 1 banana strip with 1 or 2 strips of jackfruit on one side. Roll into small cylinders and seal the end of the wrapper with a little flour or cornstarch dissolved in water.
Place cooked turron on a tray rack to cool and drain excess oil. Allow some space between pieces to prevent them from sticking together, .