1 pkg. (18 1/2 oz.) yellow cake mix
1 pkg. Royal Instant Pistachio Pudding
4 eggs
1 c. dairy sour cream (not imitation)
1/2 c. water

Combine cake mix, pudding mix, sour cream and water. Blend to moisten, then beat 2 minutes at medium speed of electric mixer. Pour into well-greased and floured 10 inch bundt pan or tube pan.

Bake at 350 degrees for 40 to 45 minutes or until done (test with toothpick). Cool in pan 10 minutes. Remove from pan and cool on wire rack. Sprinkle with confectioners' sugar, if desired. Stays moist. Store in refrigerator if warm weather.