Beat the butter with the sugar until frothy, gradually stir in the orange peel, orange flavor and eggs. Sieve in the starch and flour and mix everything well.
Pour the mixture into a piping bag with a perforated nozzle and squirt strips in the form of ladyfingers (about 4 cm long) onto a greased baking sheet.
Bake light yellow at 190 ° C for approx. 10 -12 minutes.
Remove from the baking sheet with a wide knife.
Melt the couverture in a water bath and dip each half of the orange tongues, wipe off the underside a little and let it set.