Preheat the oven to 180°C (356°F).
Finely chop the almonds and coconut.
In a bowl, combine gluten-free flour, baking powder, sugar substitute, and salt.
Add the cold butter and break it into small pieces by hand.
Add the almonds and coconut and mix well.
Add the milk and eggs, and knead into a dough.
Shape the dough into a circle and cut into 6 to 8 wedges.
Place on a baking tray and brush the surface with milk.
Bake in the preheated oven for 20 to 25 minutes.