Preheat oven to 350 degrees 1 cup or 2 sticks of butter 3/4 cup of caster sugar 1/2 rounded teaspoon salt 1 1/2 teaspoons of chopped dried lavender 3 cups all self raising flour Cream the butter and sugar. Add the dry ingredients and mix by hand or in a food processor. Press the dough into a round 9 or 10 inch pie plate. I like to put some parchment paper in the pan. This is optional. Bake until firm and barely golden. About 1 hour. Remove from oven and dust with powdered sugar. Cool before you remove from pan.