2 or 4 slices sourdough bread, cut 1 to 1 1/2 inches thick
1/3 cup sugar
1 teaspoon cinnamon
1/4 cup milk
1/2 teaspoon vanilla
oil or shortening for frying
whipped butter and/or syrup
Cut a 1-inch pocket in one side of each bread slice. Cut banana in half crosswise, then split each piece lengthwise. Remove peel and stuff two pieces of banana in each pocket of bread; set aside. Mix sugar and cinnamon; set aside. Mix together well the egg, milk and vanilla.
Heat about 4 inches of oil in a pan to 350º. Dip stuffed bread into egg/milk mixture and let it soak a few seconds into the bread. Fry bread on both sides in hot oil until lightly browned, about 3 minutes. Drain on paper towels or wire rack. Sprinkle with cinnamon sugar and serve.