Grease and flour your cookie sheets
Cream butter, sugar, grated rind, until pale
Add in flour a little at a time
Beat egg white, add in sesame seeds and honey
Scoop dough, shape into a ball, drop the ball onto sesame seed (only the top should be covered with sesame)
Place on sheet
Bake on preheated 400 F for 10-15 mins, let stand 5 mins, then move them onto cooling rack