Gluten Free Snickerdoodles

INGREDIENTS

6 1/2 tbsp

unsalted butter, at room temperature

3/4 cup

granulated sugar

egg (50 g, weighed out of shell), at room temperature

1 tsp

pure vanilla extract

1 1/4 cups

all purpose gluten-free flour (I like Better Batter here)

3/4 tsp

xanthan gum (omit if your blend already contains it)

1/8 tsp

kosher salt

3/4 tsp

ground cinnamon

1/2 tsp

baking soda

1 tsp

cream of tartar

Cinnamon sugar mixture, for rolling (1/4 cup (50 g) granulated sugar + 1 tablespoon ground cinnamon)