Cream the butter, cream cheese, and sugar until light and fluffy, 2-3 minutes
beat in the egg and the zest
beat in the lemon juice
in a separate bow stir the flour baking powder and salt together
then stir into the butter mixture making sure it's well combined
cover and chill the dough for at least 30 minutes
when you're ready to bake preheat the oven to 350˚
roll the dough in one inch balls, using the lefover sugar dip the bottom of a glass in in and then press the cookies dough down repeat as needed to flatten the balls
bake 9-10 minutes until the cookies are set but not browned
repeat with remaining dough
when the cookies are cool make the icing
zest the lemon into the powdered sugar
add JUST enough water OR lemon juice to make a drizzle-able icing OR dunk your cookies in the icing