Classic Gluten Free Peanut Butter Cup Cookies

INGREDIENTS

miniature peanut butter cups, unwrapped

1 1/4 cups

all purpose gluten free flour (I used Better Batter)

1/2 tsp

xanthan gum (omit if your blend already contains it)

2 tbsp

cornstarch (or try potato starch or arrowroot)

3/4 tsp

baking soda

1/2 tsp

kosher salt

8 tbsp

unsalted butter, at room temperature

2/3 cup

smooth, no-stir peanut butter

1/2 cup

granulated sugar

1/2 cup

packed light brown sugar

1 tsp

pure vanilla extract

egg (50 g, weighed out of shell) + 1 egg yolk at room temperature, beaten