INGREDIENTS
1/2 cup
unsalted butter
1/4 cup
granulated sugar
1/4 cup
brown sugar (packed)
1/2 cup
peanut butter
1
large egg
1/2 tsp
vanilla extract
1/2 tsp
baking soda
1/4 tsp
salt
1 cup
all purpose flour
1 cup
semi-sweet chocolate chips
Mini marshmallows (optional)