Toddler frustration.

Ch

My 2 yr old usually listens pretty well and eventually learns what she is mot allowed to touch. But no matter how hard I try, she WILL NOT leave the dog food alone. She eats it, she throws it everywhere, she brings it around the house. I've tried several different punishments and she will not stop. Its every day. What can i do? Dog is a grazer so her food is always available.