Use either a pastry blender or food processor to combine the flour, sugar, salt, and butter. Process until crumbly. Pat over the bottom of an ungreased 8 x 8-inch baking dish or pan. Bake for about 15 minutes.
Combine the sugar, lemon juice and zest, flour, baking powder, beaten eggs, shredded or flaked coconuts and mix well. Pour over the baked crust.
Bake for another 20-25 minutes or until golden brown on top. Let it stand until cool. Cut into bars or squares. Enjoy with a cup of tea! A truly refreshing sweet treat!