I got this recipe from a King Arther catalog and have made it a few times. I think it's fun, and it's always impressive. The cookies are really cute. Although it must be said that at a cookie contest in my BYU ward they lost to a concoction made out of Saltine crackers with evaporated milk poured on them.
2 1/4 c AP flour
1 T dough relaxer (I did not use this. King Arthur always calls for crazy things.)
1/4 t salt
1/2 t baking powder
3/4 c butter, cut into 1/4 inch dice and frozen for 30 minutes
3/4 c sour cream
1/2-3/4 c sugar (crystal sugar OK)
Combine dries, cut in batter to even crumbs, stir in sour cream. Gather in ball, half, and set in fridge for 1 hour or more. Take one half. Sprinkle work surface with sugar and roll to 12x10 inches. Sprinkle sugar over, and gently roll from both long sides to create an ear shape. Repeat with other half. Wrap logs and refrigerate 1 hour or more. Use a serrated knife to cut into 1/3 inch slices. Lay on parchment. Bake in 425 oven for 9-10 minutes or until sugar on bottom begins to brown. Turn over, and bake 3-5 more minutes. Watch carefully!