1 box yellow cake mix (not with pudding)
1 lb. box instant vanilla pudding
1/2 c. oil
1 c. sour cream
1/2 c. cooking sherry vinegar
1/4-1/3 c. poppy seeds
4 eggs

Mix by hand. Pour into flour and greased pan or can be made into individual muffins. Bake at 350 degrees for 45-60 minutes.