Separate eggs. Beat egg yolks, sugar and grated coconut until fluffy. Beat the egg white until stiff and fold into the egg-coconut mixture. Squeeze one lime, wash the second and cut into thin slices.
Peel and quarter the bananas and sprinkle them with the lime juice. Turn the bananas in the coconut batter. Press the mixture firmly. Heat the frying fat in a deep fryer or in a high pan and fry the coconut banana in the hot fat for 3-4 minutes.
Then drain well on kitchen paper. Form vanilla ice cream with a ball cutter or cut into cubes. Arrange on the lime slices and serve with the fried bananas.