1. Preheat your oven to 350°F (175°C).
2. In a mixing bowl, cream together the softened butter and brown sugar until light and fluffy.
3. Add the egg and vanilla extract, mixing until well combined.
4. In a separate bowl, whisk together the gluten-free flour, salt, and baking powder.
5. Gradually add the dry ingredients to the wet mixture, alternating with the milk, until a dough forms.
6. Roll out the dough on a floured surface and cut into desired shapes.
7. Place the cutouts on a baking sheet lined with parchment paper.
8. Bake for 12-15 minutes or until the edges are golden.
9. Let cool before serving.

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