INGREDIENTS
1 1/3 cups
all-purpose gluten-free flour
1/2 tsp
xanthan gum (omit if your blend already contains it)
1/2 tsp
baking powder
(1/8 teaspoon) baking soda
1/2 tsp
kosher salt
8 tbsp
unsalted butter, at room temperature
1/2 cup
packed light brown sugar (in a pinch, dark brown sugar will do)
1
egg at room temperature, beaten
4 tsp
pure vanilla extract
2 tbsp
milk