Preheat the oven to 180°C (356°F).
In a bowl, mix almond flour, erythritol, baking powder, and salt.
Cut cold butter into small pieces, add it to the mixture, and use a fork to combine until crumbly.
Add egg and milk, and knead the dough.
Flatten the dough thickly and cut into triangular or round shapes.
Line a baking tray with parchment paper and place the scones on top.
Bake in the preheated oven for 20-25 minutes.
Let cool and serve.