Combine 1/2 cup sugar, butter, grated lemon rind and egg and beat ... mixture alternately with yogurt, beginning and ending with ... Sprinkle with powdered sugar.
Combine boiling water and gelatin ... dissolved. Stir in lemon juice and 1/2 cup water. Slowly stir in blueberry pie filling. Pour into a ... until firm. Place yogurt and powdered sugar in a ... mixture. Chill. Serves 8.