Combine flour, baking powder, sugar, and salt. Sift twice for a fluffier texture.

Add diced butter to the dry ingredients and mix using a scraper until the mixture is crumbly.

Mix milk or cream with the egg in a separate bowl.

Pour the egg-milk mixture into the dry ingredients and gently mix using a cutting motion.

Add raisins or nuts to the dough and mix lightly.

Wrap the dough in plastic wrap and refrigerate for 30 minutes to 1 hour.

Roll out the dough gently and shape it into scones using your hands or a cutter.