Dissolve ½ cube of yeast in lukewarm milk, add to the flour in the bowl, knead with salt and oil using a dough hook to form a smooth dough. Cover and let rise until the filling is done.
For the filling:
Melt 1 stitch of butter in the saucepan and let the milk get hot in it, add peeled potatoes, roughly cut, and mash them with the potato masher - pieces may still be visible.
Mix in the spring onions, leek, wild garlic and sheep`s cheese with the brine, season with salt, pepper and chilli from the mill, not too salty.
Roll out the dough on a floured kitchen towel (rectangular, about 40x50cm), spread the filling on, leaving a good 2cm edge all around. Sprinkle with hard cheese. Fold in the short sides a little, roll up with the help of the kitchen towel, roll onto a baking sheet lined with baking paper. Cover and let rise in the oven heated with the light for ½-hour.
Then brush with melted butter, sprinkle with seeds and bake on the bottom rack at 180 ° convection, 200 ° top and bottom heat, gas mark 3, for about 40-45 minutes until golden brown.
In the meantime, beat all the Sabayon ingredients (from the eggs) in the beating kettle over a simmering water bath with the hand blender until they get frothy.
Fill the wild garlic bayon in the sauce, keep it warm in a glass bowl with hot water, serve with the sliced strudel.
Leaf, cabbage or tomato salads go well with it. Also as an accompaniment to roasts or pan-fried foods.
Tip:
Mixed with the filling, white or green asparagus or black salsify also tastes good - each cut into short pieces.