Savory butter cookie ingredients：
for making 30-35 cookies
cold or room temperature salted butter 150g 2/3 cup
icing sugar 30g a little bit less than 1/4 cup
green onion 1
all purpose flour or cake flour 160g 1cup +1 tablespoon
preheated oven 365°F/185°C bake for 15-17 minutes
