Found this recipe on Dr. Toast's Amazing World of Toast website:
Mmmmmm. Tonga Toast, otherwise known as the Polynesians Banana-Stuffed French Toast, is the best meal served at Walt Disney World (in my humble opinion, of course). Try this recipe at home. Its never quite the same for me, though. Maybe I need some fake Polynesian atmosphere, bird sounds, and a tropical lobby outside to make it complete.
2 or 4 slices sourdough bread, cut 1-inch thick
1 banana
1/3 cup sugar
1 teaspoon cinnamon
1 egg
1/4 cup milk
1/2 teaspoon vanilla extract
Oil or shortening for frying
Whipped butter, if desired
Maple syrup, if desired
Depending on the size of the bread slices, cut a 1-inch pocket in one side of each bread slice. Cut bananas in half crosswise, then split each piece lengthwise. Remove peel and stuff 2 pieces in each pocket of bread, again depending on size. If slices are small, use 4 and stuff 1 piece of banana in each pocket. Set aside.
Mix sugar and cinnamon. Set aside.
Mix egg, milk, and vanilla until well blended.
Heat about 4 inches of oil or shortening in a pan to 350 degrees F. Dip stuffed bread into egg and milk mixture, soaking a few minutes to penetrate into bread. Fry in hot oil or shortening until lightly browned, turning to brown both sides, about 3 minutes. Drain on paper towels on cake rack.
Sprinkle with sugar and cinnamon and serve at once. If desired, spread with whipped butter and serve with Maple syrup.
Yield: 2 servings