For the apple sparrows, peel the apples, quarter them and cut away the core. Cut the apples into slices.
In a bowl, beat the eggs, add the flour and apple juice and stir until smooth.
In a large saucepan, bring salted water to a boil and scoop the batter into it with a spaetzle slicer.
In a frying pan, heat the butter until hot and fry the apples in it.
Once the spaetzle have risen to the surface, scoop the spaetzle out of the water with a dumpling lifter and add to the pan with the apples.
Stir carefully and serve the apple spaetzle sprinkled with sugar and cinnamon.