Mix flour, eggs, wine, sugar and 1 pinch of salt until smooth. Let the dough swell for about 30 minutes.
Shake out the elderflower umbels and wash them carefully if necessary. Drain well on kitchen paper. Heat the oil in a large pot or in a deep fryer to approx. 180°C - it is hot when bubbles appear on a wooden handle.
Dip the flower umbels one after the other into the batter and let them drip off a little. Fry in hot oil for 2-3 minutes until golden brown. Lift out and let drain briefly on kitchen paper. Arrange with 1 scoop of ice cream on plates and dust with icing sugar.