Preheat oven to 350 degrees and grease cookie sheets.
Cream together the butter and sugar.
Beat the egg and add to butter and sugar.
Add the vanilla extract.
Mix in the lavendar and the flour.
Drop the bater by teaspoonfuls onto the cookie sheets.
Bake for 15 to 20 minutes or until golden.
Remove cookies from the sheets and place on wire racks to cool.