Warm 50 ml of milk lukewarm. Stir yeast and milk until smooth. Put flour, 50 g sugar and salt in a bowl and make a depression in the middle. Put yeast milk in the middle and mix with some flour from the rim.
Cover and leave to rise for about 15 minutes.
Melt 50 g butter, then remove from the heat. Pour in the milk mixture and let it cool down lukewarm. Add milk to the flour and knead to a smooth dough. Cover the dough and let it rise for about 30 minutes.
Form the dough into a long roll and cut it into 12 equally sized pieces. Shape each piece of dough into a ball. Spread the balls on the greased and floured troughs of a muffin tray (12 troughs), cover and leave to rise for approx. 30 minutes.
After about 20 minutes, press the balls slightly flat.
Simmer cream, honey and 20 g sugar in a small pot for 4-5 minutes. Add the hazelnut leaves and let the mixture cool down a bit.
Spread the nut mixture over the muffins and bake in a preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: see manufacturer) for 15-18 minutes. If the surface becomes too dark, place a 2nd tray over the muffins in the oven.
Take the muffins out of the oven, let them cool down a little and remove from the tin. Let the muffins cool down on a cake rack. Whip 250 g room-warm butter and icing sugar for 4-5 minutes until creamy.
Slowly add warm pudding by the spoonful. Pour the cream into a piping bag with star-shaped spout.
Cut the muffins horizontally. Spray the cream on the lower base, then place the lid on top. Keep muffins cold until serving. Dust with icing sugar before serving.