To make the pancakes, whisk the eggs, sugar and salt in a bowl. Gradually add flour, stirring constantly, until the dough has the consistency of sour cream. Add milk and butter, mix and leave for 15 minutes at room temperature. Grease a heated frying pan with butter and bake pancakes.
To prepare the creamy sauce, pour milk into a pan, dissolve sugar and vanilla in it. Add cream, butter, salt and egg yolks. Cook for 5 minutes, then add flour while stirring constantly. Boil until boiling.
To prepare raspberry sauce, sprinkle fresh raspberries with sugar, add a little water and cook until tender. Strain.
To prepare the filling, combine cottage cheese with sour cream, add vanilla and sugar. Stir and wrap the filling in ready-made pancakes. Before serving, heat the pancakes and put on a plate over the raspberry and cream sauce.