Bring butter, salt and 250 ml water to the boil in a saucepan. Add flour at once and stir with a mixing spoon until the dough separates from the bottom of the pot as a lump and a white layer forms on the bottom.
Put the dough into a mixing bowl. Immediately stir in 1 egg until it has completely bonded with the mixture, allow to cool for approx. 10 minutes. Stir in the remaining eggs one by one.
Line baking tray with baking paper. Draw 1 circle (26 cm Ø) with a pencil, turn over baking paper. Spread 1/3 of the dough on the circle. Bake in the preheated oven (electric cooker: 225 °C/ convection oven: 200 °C/ gas: level 4) for 20-25 minutes.
Remove and let it cool down. Pour the remaining choux pastry into a piping bag with a medium perforated spout. Draw another circle on baking paper (24 cm Ø), turn over baking paper. Use the piping bag to draw a circle on the rim.
Spray the remaining dough as tuffs (approx. 10 pieces) next to it. Bake at the same temperature.
For the nougat cream, cut the nut nougat into small pieces. Mix the pudding powder with 6 tbsp. milk. Heat the rest of the milk in a pot and melt the nougat in it. Remove from heat and stir in the mixed powder.
Put the pot back on the stove, bring to the boil and simmer for about 1 minute. Put the mixture into a bowl, cover with foil and let it cool down.
Soak the gelatine. Stir yoghurt and sugar until smooth. Squeeze the gelatine well, dissolve carefully. Stir in 2-3 tablespoons of cream, then stir everything into the cream. Put it in a cold place. Whip cream until stiff. When the cream starts to gel, fold in the cream.
Cut tuffs in half horizontally, fill with cream and chill until used. Place the choux pastry base on a cake plate. Carefully spread nougat cream on top. Place the dough ring on top and fill with the cream cream.
Chill for at least 3-4 hours. Before serving, spread red fruit jelly on top and decorate with tuffs.