c("Mix poppy seeds and buttermilk together, and let stand in refrigerator for several hours or overnight.  Sift together flour, baking powder, baking soda and salt.  Cream butter and 1 1/2 cups sugar; beat in eggs, one at a time; beat in vanilla and grated orange rind.", "Stir in flour mixture alternately with buttermilk mixture in about 4 additions of each, stirring until just smooth.", "Spoon half of batter into a greased and floured 10-inch Bundt pan.", "Mix remaining sugar and cinnamon together and sprinkle mixture over batter.", 
"Pour rest of batter into the pan.", "Bake in 350°F oven for about 1 hour, or until a wooden pick comes out clean.", "Cool in pan for 15 minutes, then turn out to finish cooling.", "Cover tightly and let season for a day or two for best flavor.")