Answer:
Marking mortal privation when firmly in place. An enduring summation inscribed in my face.
You do not want me when you donβt have me, but when you have me you donβt want to lose me.
What goes through towns and over hills but never moves?
I am a precious stone as clear as diamond. Seek me out while the sun's near the horizon. Though you can walk on water with my power try to keep me and I'll vanish in an hour.
With a halo of water and a tongue of wood; stone as skin long I stood.
I'm a soft, sweet food made from a mixture of flour, shortening, eggs, sugar, and other ingredients, baked and often decorated.