Instructions

1. Using an electric beater, beat the butter , sugar, zest and salt until creamy.
2. Add the egg, vanilla and baking powder and stir until just combined.
3. Divide the dough in half, and form two flat disks. Wrap in plastic and chill for an hour.
4. Preheat oven to 350F/180C.
5. Line two cookie sheet with parchment
6. Take one disk of dough out at a time. Roll out, on floured surface, and using a cookie cutter cut into desired shapes. Repeat with remaining dough and scraps.
7. Bake 10 minutes or so, until the edges just start turning golden. Be careful not to over cook.
8. Remove and cool on a rack.
9. Mix the powdered sugar with lemon juice, zest and vanilla.
10. When the cookies are completely cool, glaze.