INGREDIENTS
2 tbsp
butter, softened
2 tbsp
creamy peanut butter
2 tbsp
white sugar (plus more for rolling)
2 tbsp
brown sugar (light or dark is fine)
1
egg yolk
1/8 tsp
vanilla extract
1/4 cup
plus 1 tablespoon flour
1/8 tsp
baking powder
1/8 tsp
salt
1
scant ½ teaspoon baking soda*