Add butter, salt, sugar, one egg and stir until smooth.
Add flour and knead the dough for 5-10 minutes.
Cover the dough with a towel and place in a warm place (I use an oven preheated to 40 °С) for about 2 hours: the dough should increase in volume by 2-3 times.
Divide the dough into 22 pieces by 75 g each, each roll into a bun. To do this fold your palm as a ‘house’ and start rolling a ball from the dough on the table. The result should be a round elastic bun.
Put the buns on a baking sheet covered with baking paper and leave them for 30-40 minutes: buns will increase significantly.
Preheat oven to 250 °С.
Beat the egg with a fork, grease each bun with an egg using a cooking brush.
Bake buns for about 8 minutes until blush. Cool buns on wire rack.
Making Almond Mass
For almond mass mix almond flour, egg whites and icing sugar until smooth. Move to a cornet with a nozzle.
For cream whip cream to persistent peaks then add icing sugar and cream cheese. Whip, transfer to a cornet with a figured nozzle and refrigerate for an hour.
Сut off the roof of each bun, put a little mass in the middle, around it make a circle of cream.