Combine first 4 ingredients in work bowl of processor.Process in cold butter on pulse till coarse meal texture forms.Add cream, egg, extract and zest, then raisins. Remove from work bowl and gently knead. Pat into a disc about 1/2 inch thickness and score into 6 or 8 wedges. Brush w/addtional egg white and sprinkle with sugar. Bake on greased baking sheet in preheated 400 degree oven for about 15 mins.