Take a baking sheet and cover it with parchment. Preheat the oven to 200°C.
Place the cut butter and sugar into a food processor. Mix until you get a smooth mass. Add salt, vanillin and sifted flour, and mix everything thoroughly. Add flour in parts, as you may need either less or more. As a result, you get an elastic dough.
Pinch off 30 g pieces of dough and roll into circles. Next, flatten the circles and dip the front side into coconut flakes. Make a dimple on the flatbread using any convenient device.
Place the cakes on a baking sheet and place in the oven for 20 minutes until golden brown. While the cookies are baking, prepare the filling. Place the toffee in a saucepan and pour in the cream. Place over low heat and stir constantly until the toffee has dissolved. As a result, you will get a homogeneous mass.
Remove the finished cookies from the oven and spoon the filling into the center of the cookies. If your paste begins to harden, then you need to reheat it. Sprinkle salt on top and let the cookies cool.
Place the cookies on a plate and garnish with finely grated dark chocolate.