INGREDIENTS
1 cup
butter softened
1 1/2 cups
granulated sugar
2 1/2 cups
Cup4Cup Gluten Free Flour ((352 grams))
2/3 cup
tapioca starch ((75 grams))
1/2 tsp
salt
2 tsp
baking powder
1 cup
milk 2% milkfat
2 tsp
vanilla extract
3/4 cup
egg whites plus 3 tablespoons*