Preheat your oven to 350°F and line a baking sheet with parchment paper.

In a large mixing bowl, combine the gluten-free all-purpose flour, sugar, baking powder, and salt.

In a separate bowl, whisk together the melted butter, milk, egg, and vanilla extract until well blended.

Pour the wet ingredients into the dry ingredients and stir until a dough forms.

Transfer the dough onto the prepared baking sheet and shape into a flat round disc about 1 inch thick.

Cut the disc into 8 equal wedges and separate them slightly on the baking sheet.

Bake in the preheated oven for 25 minutes or until the scones are golden brown and a toothpick inserted into the center comes out clean.

Remove from the oven and let cool on the baking sheet for a few minutes before transferring to a wire rack to cool completely.