Preheat the oven to 325°F. Line a baking sheet with parchment paper and set it aside.
Mix all the dry ingredients in the bowl of the stand mixer. Set the stand mixer on the paddle attachment and them well.
1 cup Gluten-Free flour, ⅓ cup Almond flour, ½ teaspoon Corn starch, ½ teaspoon Baking powder, ¼ teaspoon Baking soda, ⅛ teaspoon Salt, ½ cup Brown sugar
Add the butter, egg, vanilla extract, and milk. Mix until well combined
1 egg, ½ cup Butter, 2 tablespoon Milk, 1 tablespoon Vanilla extract
The batter becomes sticky and it is okay.
Using your hands, roll a small amount of the dough into a small ball. Roll the ball in the Turbinado sugar, and coat it completly.
½ cup Turbinado sugar
Place the balls on the lined baking sheet. Leave an inch space between them. Bake for 13-15 minutes. Mine was ready after 15 minutes.
Let the cookies cool down on the sheet for 5 minutes, then transfer them to the cooling rack.