Add 1 cup of softened butter, ½ cup of white sugar and ½ cup of brown sugar to mixing bowl and cream them together until smooth. Add 2 large eggs and 1 teaspoon of vanilla extract and mix until well combined.
In another medium mixing bowl, add 2 ½ cups of your gluten free all purpose flour blend, 1 teaspoon of baking soda and ½ teaspoon of sea salt and mix well.