Beat the butter, sugar and salt until creamy, slowly add the eggs and continue beating until the sugar has dissolved. Mix in flour and baking powder and stir in. Spread the dough on a baking sheet, sprinkle with flaked almonds and sugar and bake at 200 ° C for 20-25 minutes. Cut out hearts as large as possible and let them cool. Whip the cream together with the cream stabilizer and vanilla sugar until stiff and pour into a piping bag. Halve the almond hearts crosswise and fill with the vanilla cream.